{"title":"MerCruiser 3.0LX GM 181 CID Sterndrive — 0C856559 THRU 0F603999 · Exhaust Manifold and Water System(With End Caps) 3.0L Only","description":"\u003cdiv class=\"model-catalog\"\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/mercruiser-3-0lx-gm-181-cid-sterndrive-0c856559-thru-0f603999\"\u003eBack to MerCruiser 3.0LX GM 181 CID Sterndrive — 0C856559 THRU 0F603999\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eMatch the application and restrictions below with your engine or drive before ordering.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eCatalog reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/27-96429-manifold-gasket-for-mercruiser-2-5l-3-0l-non-lx\"\u003e27-96429 Manifold Gasket for MerCruiser 2.5L 3.0L Non-LX\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial: 0C856559 THRU 0F603999\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"catalog-reference\"\u003eCatalog parts list · Ref. 13\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/27-99777-2-open-exhaust-elbow-gasket-for-mercruiser-120-140-2-5l-3-0l\"\u003e27-99777-2 Open Exhaust Elbow Gasket for MerCruiser 120 140 2.5L 3.0L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial: 0C856559 THRU 0F603999\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"catalog-reference\"\u003eCatalog parts list · Ref. 15\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/27-99777-2-rear-riser-open-exhaust-elbow-gasket-set-for-mercruiser\"\u003e27-99777-2 Rear Riser Open Exhaust Elbow Gasket Set for MerCruiser\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial: 0C856559 THRU 0F603999\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"catalog-reference\"\u003eCatalog parts list · Ref. 15\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/27-99777-2-open-rear-riser-exhaust-elbow-gasket-for-mercruiser\"\u003e27-99777-2 Open Rear-Riser Exhaust Elbow Gasket for MerCruiser\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSerial: 0C856559 THRU 0F603999\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"catalog-reference\"\u003eCatalog parts list · Ref. 15\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"27-99777-2-open-exhaust-elbow-gasket-for-mercruiser-120-140-2-5l-3-0l","title":"27-99777-2 Open Exhaust Elbow Gasket for MerCruiser 120 140 2.5L 3.0L","description":"\u003cdiv style=\"width:100%;max-width:960px;margin:0 auto;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.75;color:#293a35;background:#ffffff;overflow-wrap:anywhere;\"\u003e\n  \u003csection style=\"padding:28px 24px;margin:0 0 40px;border-top:5px solid #234d40;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003cp style=\"margin:0 0 14px;color:#456052;font-size:12px;line-height:1.6;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;\"\u003eSERDAMARINE \/ MARINE EXHAUST PARTS\u003c\/p\u003e\n    \u003ch2 style=\"margin:0 0 18px;color:#203e32;font-family:Georgia,Times,serif;font-size:clamp(25px,4vw,34px);font-weight:400;line-height:1.25;\"\u003eRear-Riser Open Exhaust Manifold-to-Elbow Gasket\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThis rear-riser open gasket services the exhaust manifold-to-elbow or adaptor joint on applicable MerCruiser 4-cylinder, 6-cylinder, and V8 engines, including 120, 140, 2.5L, 3.0L, and 3.0LX series applications. It corresponds to primary OEM reference 27-99777-2 and is distinct from the closed-cooling gasket configuration referenced as MerCruiser 27-92720 \/ GLM 32630.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eEngine Applications\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eEngine model alone is not sufficient to distinguish between open and closed-cooling gasket versions; match your engine model, production year, and existing rear-riser open-gasket configuration at the exhaust manifold-to-elbow or adaptor joint before ordering.\u003c\/p\u003e\n    \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 4-Cyl. \u0026amp; 6-Cyl. (except 120hp)\u003c\/strong\u003e — Years: 1968–1982. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser All V8\u003c\/strong\u003e — Years: 1978–1982. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 140\u003c\/strong\u003e — Engine configuration: Inline 4, GM 181 CID, 4-Cyl. Years: 1968–1982. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 120 \/ 140\u003c\/strong\u003e — Engine configuration: Inline 4, 153 \/ 181 CID, 4-Cyl. Years: 1982–1995. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 2.5L\u003c\/strong\u003e — Years: 1983–1994. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 3.0L\u003c\/strong\u003e — Years: 1983–1994. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 3.0LX \/ 3.0L\u003c\/strong\u003e — Engine configuration: Inline 4, GM 181 CID, 4-Cyl. Years: 1990 \u0026amp; up. Joint location: Exhaust manifold to elbow or adaptor. Configuration: Rear-riser open gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cdiv style=\"margin:18px 0 0;padding:14px 16px;border-left:3px solid #8c622b;background:#faf5e9;color:#59421f;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eNot Suitable For\u003c\/h3\u003e\n      \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n        \u003cli style=\"margin:0;padding:10px 0;border-bottom:1px solid #dce3dc;\"\u003e\n          \u003cstrong\u003eMerCruiser 120hp (1968–1982)\u003c\/strong\u003e — Excluded from the 1968–1982 4\/6-Cyl. application range.\n          \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n        \u003c\/li\u003e\n        \u003cli style=\"margin:0;padding:10px 0 0;\"\u003e\n          \u003cstrong\u003eClosed-Cooling Gasket Applications (MerCruiser 27-92720 \/ GLM 32630)\u003c\/strong\u003e — This listing is the open rear-riser gasket version, not the closed-cooling gasket configuration.\n          \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eReference Numbers\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThe numbers below are provided for part identification and cross-reference only; they do not alone guarantee interchangeability across different gasket configurations or indicate manufacturer identity.\u003c\/p\u003e\n    \u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMerCruiser Stern \/ Out Drive Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777-2, 27-997772, 27-99777Q02, 99777Q02, 997771, 99777B2, 27-997771, 27-99777B2, 27-52076, 52076\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMercury Mariner Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eOMC Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e0508615\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eAftermarket Reference (GLM)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eGLM31520, 31520\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eAftermarket Reference (Sierra)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e18-2833, 18-2833-9\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eAftermarket Reference (RECMAR)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eREC27-99777Q02\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eDifferent Configuration (Not This Part)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eMerCruiser 27-92720, GLM 32630 (Closed-cooling gasket version)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eSupplied Parts\u003c\/h2\u003e\n    \u003cul style=\"margin:0;padding-left:22px;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eRear-riser open exhaust manifold-to-elbow gasket\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eService \u0026amp; Installation Notes\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eGeneral service guidance only. Use the service manual for your exact engine and exhaust configuration.\u003c\/p\u003e\n    \u003col style=\"margin:0;padding-left:22px;list-style-type:decimal;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eEnsure the engine is shut off, completely cool, and secured against accidental starting before servicing any exhaust joint.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eSupport the exhaust elbow or adaptor during disassembly to prevent strain on connected exhaust hoses or mounting hardware.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eClean the mating surfaces on both the exhaust manifold and the elbow or adaptor thoroughly, taking care not to gouge or damage the sealing faces.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eCompare the port openings of the new rear-riser open gasket directly against the joint passages to verify that it matches the required open-gasket configuration; never substitute an open gasket where a closed-cooling gasket is specified.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eReassemble the joint and tighten fasteners according to the sequence and specifications in your engine service manual, then inspect the joint during initial operation and stop the engine immediately if any exhaust or water leak is detected.\u003c\/li\u003e\n    \u003c\/ol\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;padding:24px;border-top:1px solid #bdc9c0;border-bottom:1px solid #bdc9c0;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eThe Serdamarine Approach\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eExhaust parts need a configuration match. Serdamarine focuses on marine exhaust manifolds and their related service parts. Application details, connection requirements and public reference numbers are presented together to support part selection.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eQuestions Before Replacement\u003c\/h2\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eHow do I distinguish this gasket from the closed-cooling version?\u003c\/h3\u003e\n      \u003cp style=\"margin:0 0 14px;\"\u003eThis part is the rear-riser open gasket for the exhaust manifold-to-elbow or adaptor joint, identified by references such as MerCruiser 27-99777-2, 27-99777Q02, and GLM 31520. The closed-cooling alternative uses a different design and is referenced under MerCruiser 27-92720 or GLM 32630.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eDoes this gasket fit all MerCruiser 120hp inline 4-cylinder engines?\u003c\/h3\u003e\n      \u003cp style=\"margin:0 0 14px;\"\u003eNo. For 1968–1982 4-cylinder and 6-cylinder applications, the 120hp model is specifically excluded. However, it is listed for Model 120 \/ 140 inline 4-cylinder (153 \/ 181 CID) engines from 1982–1995 when equipped with the rear-riser open-gasket configuration.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Serdamarine","offers":[{"title":"Default Title","offer_id":45165060292659,"sku":"24GK061","price":10.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/2930\/4115\/files\/marine-exhaust-part-cccb8e34afc43da2.webp?v=1792733857"},{"product_id":"27-99777-2-rear-riser-open-exhaust-elbow-gasket-set-for-mercruiser","title":"27-99777-2 Rear Riser Open Exhaust Elbow Gasket Set for MerCruiser","description":"\u003cdiv style=\"width:100%;max-width:960px;margin:0 auto;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.75;color:#293a35;background:#ffffff;overflow-wrap:anywhere;\"\u003e\n  \u003csection style=\"padding:28px 24px;margin:0 0 40px;border-top:5px solid #234d40;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003cp style=\"margin:0 0 14px;color:#456052;font-size:12px;line-height:1.6;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;\"\u003eSERDAMARINE \/ MARINE EXHAUST PARTS\u003c\/p\u003e\n    \u003ch2 style=\"margin:0 0 18px;color:#203e32;font-family:Georgia,Times,serif;font-size:clamp(25px,4vw,34px);font-weight:400;line-height:1.25;\"\u003eRear Riser Open Exhaust Elbow Gasket Set (2 Pieces)\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThis two-piece rear-riser open exhaust elbow gasket set seals the joint between the exhaust manifold and the exhaust elbow or adaptor on listed MerCruiser 4-cylinder, 6-cylinder, and V8 engines, referencing OEM number 27-99777-2. It is configured specifically for open-passage rear-riser joints and is distinct from the closed-cooling blocking-gasket configuration referenced under 27-92720 or GLM 32630.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eConfiguration \u0026amp; Specifications\u003c\/h2\u003e\n    \u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eJoint Location\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eExhaust manifold to exhaust elbow or adaptor (rear-riser exhaust assembly)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003ePassage Configuration\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eOpen gasket pattern\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eExcluded Configuration\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eNot the closed-cooling blocking-gasket version referenced as MerCruiser 27-92720 \/ GLM 32630\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eEngine Applications\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThis gasket set fits listed MerCruiser applications equipped with a rear-riser exhaust manifold-to-elbow or adaptor joint using the open-gasket pattern. Verify that your assembly requires the open passage rather than a blocking gasket; on 2.5L and 3.0L engines from 1983–1994, check the installed exhaust-joint configuration directly before ordering.\u003c\/p\u003e\n    \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 4-Cylinder and 6-Cylinder (except 120 hp)\u003c\/strong\u003e — Years: 1968–1982. Rear riser exhaust manifold to elbow or adaptor joint with open gasket pattern.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser All V8\u003c\/strong\u003e — Years: 1978–1982. Rear riser exhaust manifold to elbow or adaptor joint with open gasket pattern.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 140\u003c\/strong\u003e — Inline 4, GM 181 CID, 4-Cylinder. Years: 1968–1982. Rear riser exhaust manifold to elbow or adaptor joint with open gasket pattern.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 120 \/ 140\u003c\/strong\u003e — Inline 4, 153 \/ 181 CID, 4-Cylinder. Years: 1982–1995. Rear riser exhaust manifold to elbow or adaptor joint with open gasket pattern.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser Model 3.0L \/ 3.0LX\u003c\/strong\u003e — Inline 4, GM 181 CID, 4-Cylinder. Years: 1990 and up. Rear riser exhaust manifold to elbow or adaptor joint with open gasket pattern.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 2.5L\u003c\/strong\u003e — Years: 1983–1994. Rear riser exhaust manifold to elbow or adaptor joint; confirm installed open-gasket exhaust-joint configuration.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 3.0L\u003c\/strong\u003e — Years: 1983–1994. Rear riser exhaust manifold to elbow or adaptor joint; confirm installed open-gasket exhaust-joint configuration.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003cdiv style=\"margin:18px 0 0;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eNot Suitable For\u003c\/h3\u003e\n      \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n        \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n          \u003cstrong\u003eMerCruiser 120 hp (within 1968–1982 4\/6-Cylinder group)\u003c\/strong\u003e — Excluded from the 1968–1982 4\/6-Cylinder application range.\n          \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n        \u003c\/li\u003e\n        \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n          \u003cstrong\u003eClosed-Cooling Blocking-Gasket Assemblies (MerCruiser 27-92720 \/ GLM 32630)\u003c\/strong\u003e — Assemblies requiring a blocking gasket rather than an open passage gasket.\n          \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n        \u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003ch3 style=\"font-size:17px;margin:20px 0 10px;color:#143b31;\"\u003eAdditional model-specific applications\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;line-height:1.7;\"\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 1968–1982; except 120 HP; rear-riser open gasket at the exhaust manifold-to-elbow or adaptor joint.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1968–1982; except 120 HP; rear-riser open gasket at the exhaust manifold-to-elbow or adaptor joint.\u003c\/li\u003e\n\u003cli\u003eMerCruiser all V8 applications, 1978–1982; rear-riser open gasket; specific V8 models are not individually identified.\u003c\/li\u003e\n\u003cli\u003eMerCruiser MODEL 3.0LX, from 1990 onward; inline 4, GM 181 CID; confirm rear-riser open-gasket exhaust configuration.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 2.5L application, 1983–1994; exhaust manifold gasket set application; confirm rear-riser open-gasket joint. Cylinder configuration and model code not specified.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 3.0L application, 1983–1994; exhaust manifold gasket set application; confirm rear-riser open-gasket joint. Cylinder configuration not specified in this sales-note statement.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1968; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1969; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1970; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1971; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1972; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1973; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1974; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1975; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1976; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1977; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1978; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1979; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1980; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1981; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4-cylinder applications, 120 HP, 1982; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 120 HP, 1968; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 120 HP, 1969; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 120 HP, 1970; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 120 HP, 1971; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 120 HP, 1972; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1973; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1974; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1975; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1976; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1977; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1978; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1979; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1980; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1981; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder applications, 1982; Excluded: 1968–1982 4\/6-cylinder applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eReference Numbers\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThe numbers below are provided for part identification and cross-reference only; they do not alone guarantee interchangeability across different joint configurations or indicate manufacturer identity.\u003c\/p\u003e\n    \u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMerCruiser OEM References\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777-2, 27-997772, 27-99777Q02, 99777Q02, 997771, 99777B2, 27-997771, 27-99777B2, 27-52076, 52076\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMercury Mariner Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eOMC Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e0508615\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eSierra Aftermarket References\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e18-2833, 18-2833-9\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eGLM Aftermarket References\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eGLM31520, 31520\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eRECMAR Aftermarket Reference\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eREC27-99777Q02\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eDifferent Configuration Comparison (Not Interchangeable)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eMerCruiser 27-92720, GLM 32630 (Closed-cooling blocking-gasket version; not replaceable by this open gasket)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eSupplied Parts\u003c\/h2\u003e\n    \u003cul style=\"margin:0;padding-left:22px;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003e2 × Rear-riser open exhaust elbow gaskets\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eService \u0026amp; Installation Notes\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eGeneral service guidance only. Use the service manual for your exact engine and exhaust configuration.\u003c\/p\u003e\n    \u003col style=\"margin:0;padding-left:22px;list-style-type:decimal;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eEnsure the engine is shut off, completely cool, and secured against accidental starting before servicing any exhaust components.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eSupport the exhaust elbow or adaptor during disassembly and carefully clean both mating surfaces on the manifold and elbow\/adaptor without gouging the sealing planes.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eCompare the new open gasket directly against the removed gasket and the casting passages to verify that an open-passage pattern is required rather than a blocking gasket.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003ePosition the gasket and tighten the mounting fasteners according to the sequence and specifications in your engine service manual. If any abnormal leakage or temperature issue occurs during operation, shut down the engine immediately and inspect the joint.\u003c\/li\u003e\n    \u003c\/ol\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;padding:24px;border-top:1px solid #bdc9c0;border-bottom:1px solid #bdc9c0;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eThe Serdamarine Approach\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eExhaust parts need a configuration match. Serdamarine focuses on marine exhaust manifolds and their related service parts. Application details, connection requirements and public reference numbers are presented together to support part selection.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eQuestions Before Replacement\u003c\/h2\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eCan this gasket replace MerCruiser 27-92720 or GLM 32630?\u003c\/h3\u003e\n      \u003cp style=\"margin:0 0 14px;\"\u003eNo. This set provides the open-gasket pattern associated with MerCruiser 27-99777-2 and GLM 31520. It is not a substitute for the closed-cooling blocking-gasket version referenced as MerCruiser 27-92720 or GLM 32630.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eHow does this apply to 120 hp and 140 hp 4-cylinder models?\u003c\/h3\u003e\n      \u003cp style=\"margin:0 0 14px;\"\u003eWithin the 1968–1982 4\/6-cylinder group, 120 hp models are excluded while Model 140 (GM 181 CID) is included. For the later 1982–1995 inline 4 range (153\/181 CID), both Model 120 and Model 140 are listed when equipped with the rear-riser open-gasket manifold-to-elbow or adaptor joint.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Serdamarine","offers":[{"title":"Default Title","offer_id":45171575029811,"sku":"24GK061*2","price":14.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/2930\/4115\/files\/marine-exhaust-part-4bb16baa9ffc975d.png?v=1792750255"},{"product_id":"27-99777-2-open-rear-riser-exhaust-elbow-gasket-for-mercruiser","title":"27-99777-2 Open Rear-Riser Exhaust Elbow Gasket for MerCruiser","description":"\u003cdiv style=\"width:100%;max-width:960px;margin:0 auto;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.75;color:#293a35;background:#ffffff;overflow-wrap:anywhere;\"\u003e\n  \u003csection style=\"padding:28px 24px;margin:0 0 40px;border-top:5px solid #234d40;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003cp style=\"margin:0 0 14px;color:#456052;font-size:12px;line-height:1.6;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;\"\u003eSERDAMARINE \/ MARINE EXHAUST PARTS\u003c\/p\u003e\n    \u003ch2 style=\"margin:0 0 18px;color:#203e32;font-family:Georgia,Times,serif;font-size:clamp(25px,4vw,34px);font-weight:400;line-height:1.25;\"\u003eExhaust Manifold-to-Elbow Gasket — Rear Riser, Open Type\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThis aftermarket open-type gasket seals the joint between the exhaust manifold and the exhaust elbow or adaptor on rear-riser MerCruiser Stern \/ Out Drive installations referenced under 27-99777-2, including specified 4\/6-cylinder (1968–1982, except 120 hp), V8 (1978–1982), Model 120\/140 inline-4, and 2.5L \/ 3.0L \/ 3.0LX series engines.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003eIt is the open rear-riser configuration and differs from the closed-cooling gasket version referenced as MerCruiser 27-92720 or GLM 32630.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eConfiguration \u0026amp; Specifications\u003c\/h2\u003e\n    \u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eJoint Location\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eExhaust manifold to exhaust elbow or adaptor\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eRiser Position\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eRear riser\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eGasket Flow Configuration\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eOpen type (distinct from the closed-cooling version referenced under MerCruiser 27-92720 \/ GLM 32630)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eEngine Applications\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eSelect this gasket by matching both the engine application and the open rear-riser manifold-to-elbow or adaptor joint configuration rather than relying on engine displacement alone.\u003c\/p\u003e\n    \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 4\/6-Cyl. (except 120 hp)\u003c\/strong\u003e — Years: 1968–1982. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser All V8\u003c\/strong\u003e — Years: 1978–1982. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser MODEL 140 — INLINE 4, GM 181 CID, 4-CYL.\u003c\/strong\u003e — Years: 1968–1982. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser MODEL 120\/140 — INLINE 4, 153\/181 CID, 4-CYL.\u003c\/strong\u003e — Years: 1982–1995. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint. For a 1982 Model 120, verify the actual manifold\/elbow version and required gasket number, as 1968–1982 120 hp applications are excluded.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 2.5L\u003c\/strong\u003e — Years: 1983–1994. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 3.0L\u003c\/strong\u003e — Years: 1983–1994. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser MODEL 3.0LX \/ 3.0L — INLINE 4, GM 181 CID, 4-CYL.\u003c\/strong\u003e — Years: 1990 \u0026amp; up. Position and configuration: Rear riser, open-type gasket at the exhaust manifold to elbow or adaptor joint. Verify the installed exhaust-joint version on 1990-onward engines, as the model name alone does not identify later design changes.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eFits when specified\u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3 style=\"margin:24px 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eNot Suitable For\u003c\/h3\u003e\n    \u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eMerCruiser 4-Cyl. 120 hp (1968–1982)\u003c\/strong\u003e — Excluded from the 1968–1982 4\/6-cylinder application range; for a 1982 Model 120 transition year, check the installed manifold\/elbow version and part number.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003e\n        \u003cstrong\u003eClosed-Cooling Joint Applications Calling for MerCruiser 27-92720 or GLM 32630\u003c\/strong\u003e — Requires the closed-cooling gasket configuration rather than this open-type rear-riser gasket.\n        \u003cspan style=\"display:block;margin:6px 0 0;color:#59421f;font-size:13px;font-weight:700;\"\u003eNot suitable\u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003ch3 style=\"font-size:17px;margin:20px 0 10px;color:#143b31;\"\u003eAdditional model-specific applications\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;line-height:1.7;\"\u003e\n\u003cli\u003eMerCruiser 4-cylinder engines, 1968–1982; rear-riser open manifold-to-elbow\/adaptor gasket application, excluding 120 HP engines.\u003c\/li\u003e\n\u003cli\u003eMerCruiser 6-cylinder engines, 1968–1982; rear-riser open manifold-to-elbow\/adaptor gasket application, excluding 120 HP engines.\u003c\/li\u003e\n\u003cli\u003eMerCruiser All V8 engines, 1978–1982; rear-riser open manifold-to-elbow\/adaptor gasket. Individual models and horsepower are not specified.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eReference Numbers\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eThe numbers below are provided for part identification and cross-reference only; they do not indicate that this aftermarket part was manufactured by the referenced brands, and numbers for other joint configurations are separated below.\u003c\/p\u003e\n    \u003ctable style=\"width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMerCruiser Stern \/ Out Drive Reference Numbers (Open Rear-Riser)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777-2, 27-997772, 27-99777Q02, 99777Q02, 997771, 99777B2, 27-997771, 27-99777B2, 27-52076, 52076\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eMercury Mariner Reference Number\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e27-99777\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eOMC Reference Number\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003e0508615\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eAftermarket Reference Numbers (Open Rear-Riser)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eSierra: 18-2833, 18-2833-9; GLM: GLM31520, 31520; RECMAR: REC27-99777Q02\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eDifferent Configuration Comparison — Closed-Cooling Version (Not Interchangeable)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eMerCruiser Stern \/ Out Drive: 27-92720; GLM: 32630\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\" style=\"width:36%;padding:13px 10px 13px 0;border-bottom:1px solid #e0e5df;vertical-align:top;text-align:left;font-size:14px;font-weight:700;color:#456052;\"\u003eAdditional Catalog Comparison Numbers (Unconfirmed Relationship)\u003c\/th\u003e\n          \u003ctd style=\"padding:13px 0 13px 10px;border-bottom:1px solid #e0e5df;vertical-align:top;\"\u003eMerCruiser Stern \/ Out Drive: 27-39915; GLM: 31410 (listed in catalog comparison records; not confirmed as direct replacements for the open rear-riser 27-99777-2 gasket)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eSupplied Parts\u003c\/h2\u003e\n    \u003cul style=\"margin:0;padding-left:22px;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003e4 × Exhaust manifold-to-elbow gasket (rear riser, open type)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eService \u0026amp; Installation Notes\u003c\/h2\u003e\n    \u003cp style=\"margin:0 0 14px;\"\u003eGeneral service guidance only. Use the service manual for your exact engine and exhaust configuration.\u003c\/p\u003e\n    \u003col style=\"margin:0;padding-left:22px;list-style-type:decimal;\"\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eShut off the engine, allow all exhaust components to cool completely, and disconnect the battery to prevent accidental cranking before loosening the elbow or adaptor hardware.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eSupport the exhaust elbow or adaptor during removal and installation so its weight does not damage the manifold sealing surfaces or threads.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eClean old gasket material from both the manifold and the elbow or adaptor mating faces while protecting the machined surfaces from gouges, and verify that the passage layout matches the open rear-riser gasket.\u003c\/li\u003e\n      \u003cli style=\"margin:0 0 12px;\"\u003eAlign the new gasket with all bolt holes and passages, then tighten the fasteners to the sequence and specification listed in your engine service manual; stop operation immediately and inspect the joint if any exhaust or water leak is detected during initial run-up.\u003c\/li\u003e\n    \u003c\/ol\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;padding:24px;border-top:1px solid #bdc9c0;border-bottom:1px solid #bdc9c0;background:#f5f3ec;box-sizing:border-box;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eThe Serdamarine Approach\u003c\/h2\u003e\n    \u003cp style=\"margin:0;\"\u003eExhaust parts need a configuration match. Serdamarine focuses on marine exhaust manifolds and their related service parts. Application details, connection requirements and public reference numbers are presented together to support part selection.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection style=\"margin:0 0 40px;\"\u003e\n    \u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eQuestions Before Replacement\u003c\/h2\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eHow does 27-99777-2 differ from MerCruiser 27-92720 or GLM 32630?\u003c\/h3\u003e\n      \u003cp style=\"margin:0;\"\u003eMerCruiser 27-99777-2 (and GLM 31520) identifies the open-type rear-riser gasket for the exhaust manifold-to-elbow or adaptor joint. If your joint specifies MerCruiser 27-92720 or GLM 32630, it requires the closed-cooling gasket version instead.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eWhy is the 1982 Model 120 listed in both the excluded and applicable ranges?\u003c\/h3\u003e\n      \u003cp style=\"margin:0;\"\u003eThe 1968–1982 4\/6-cylinder application group excludes 120 hp models, while the Model 120\/140 (153\/181 CID, inline-4) group spans 1982–1995. On a 1982 Model 120, match the installed manifold\/elbow version and original gasket reference number.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin:0;padding:18px 0;border-bottom:1px solid #dce3dc;\"\u003e\n      \u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eCan I select this gasket for a 1990-onward 3.0L or 3.0LX by model name alone?\u003c\/h3\u003e\n      \u003cp style=\"margin:0;\"\u003eNo. For Model 3.0L and 3.0LX (GM 181 CID inline-4) engines from 1990 onward, the engine model name does not identify later exhaust-joint design changes; match the installed rear-riser manifold-to-elbow joint version and part reference 27-99777-2 \/ 27-99777Q02.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Serdamarine","offers":[{"title":"Default Title","offer_id":45171991707699,"sku":"24GK061*4","price":21.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/2930\/4115\/files\/marine-exhaust-part-94238d414053742a.png?v=1792755108"},{"product_id":"27-96429-manifold-gasket-for-mercruiser-2-5l-3-0l-non-lx","title":"27-96429 Manifold Gasket for MerCruiser 2.5L 3.0L Non-LX","description":"\u003cdiv style=\"width:100%;max-width:960px;margin:0 auto;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.75;color:#293a35;background:#ffffff;overflow-wrap:anywhere;\"\u003e\n\u003csection style=\"padding:28px 24px;margin:0 0 40px;border-top:5px solid #234d40;background:#f5f3ec;box-sizing:border-box;\"\u003e\u003cp style=\"margin:0 0 14px;color:#456052;font-size:12px;line-height:1.6;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;\"\u003eSERDAMARINE \/ MARINE EXHAUST PARTS\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 18px;color:#203e32;font-family:Georgia,Times,serif;font-size:clamp(25px,4vw,34px);font-weight:400;line-height:1.25;\"\u003e27-96429 Manifold Gasket for MerCruiser 2.5L 3.0L Non-LX\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eAftermarket exhaust manifold mounting gasket referenced to MerCruiser 27-96429 for the listed 120\/2.5L and 140\/3.0L old-style non-LX applications. The LX gasket configuration is different; model years and serial limits are listed below.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"margin:0 0 40px;\"\u003e\u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eEngine Applications\u003c\/h2\u003e\n\u003cul style=\"list-style:none;margin:0;padding:0;\"\u003e\n\u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003eMerCruiser 120 \/ 2.5L, GM 153 CID inline-four; 1983–1989; serial 6229718–0C853255; old-style non-LX manifold.\u003c\/li\u003e\n\u003cli style=\"margin:0;padding:17px 0;border-bottom:1px solid #dce3dc;\"\u003eMerCruiser 140 \/ 3.0L, GM 181 CID inline-four; 1982–1995; serial 6229718–0F603999; old-style non-LX manifold.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eNot Suitable For\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eNot suitable for MerCruiser 3.0LX, 1990–1995, serial 0C856559–0F426999; this configuration uses 27-815528 \/ GLM 33580.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eNot suitable for the MerCruiser 3.0L \/ LX configuration from serial 0F427000 onward (1995 onward); use the specified 27-815528 \/ GLM 33580 gasket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eMatch the original part reference and the configuration of the installed assembly.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"margin:0 0 40px;\"\u003e\u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eReference Numbers\u003c\/h2\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eProduct references\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eMercruiser Stern \/ Out Drive — 27-96429\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eMercruiser Stern \/ Out Drive — 96429\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eSierra — 18-1204\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eSierra — 18-1204-1\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eSierra — 18-1204-1-9\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eGLM — 33570\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eMallory — 9-61419\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eOther-brand reference\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eOMC — 0912164\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eOMC — 912164\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#234d40;font-size:17px;line-height:1.5;font-weight:700;\"\u003eDifferent gasket configuration — not this product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eMercruiser Stern \/ Out Drive — 27-815528\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eGLM — 33580\u003c\/li\u003e\n\u003cli style=\"margin:0 0 12px;\"\u003eother — 3853256\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection style=\"margin:0 0 40px;\"\u003e\u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eSupplied Parts\u003c\/h2\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\u003cli style=\"margin:0 0 12px;\"\u003eExhaust manifold mounting gasket (27-96429)\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003csection style=\"margin:0 0 40px;\"\u003e\u003ch2 style=\"margin:0 0 18px;padding:0 0 10px;border-bottom:1px solid #bdc9c0;color:#234d40;font-family:Georgia,Times,serif;font-size:25px;font-weight:400;line-height:1.35;\"\u003eService \u0026amp; Installation Notes\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eGeneral service guidance only. Use the service manual for your exact engine and exhaust configuration.\u003c\/p\u003e\n\u003col style=\"list-style-type:decimal;margin:0;padding-left:22px;\"\u003e\n\u003cli\u003eAllow the engine to cool and prevent accidental starting before service.\u003c\/li\u003e\n\u003cli\u003eInspect the mating surfaces and connections, then install using the engine manufacturer’s procedure and specified settings.\u003c\/li\u003e\n\u003cli\u003eCheck the serviced connection for leakage before returning the engine to use.\u003c\/li\u003e\n\u003c\/ol\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Serdamarine","offers":[{"title":"Default Title","offer_id":45172697628723,"sku":"24GK054","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/2930\/4115\/files\/marine-exhaust-part-6eeca0c29581abe5.jpg?v=1792766386"}],"url":"https:\/\/serdamarine.com\/collections\/mercruiser-3-0lx-gm-181-cid-sterndrive-0c856559-thru-0f603999-exhaust-manifold-and-water-system-with-end-caps-3-0l-only.oembed","provider":"我的商店","version":"1.0","type":"link"}