27-863726 Exhaust Gasket for Mercury Mariner - 4 Pack
27-863726 Exhaust Gasket for Mercury Mariner - 4 Pack is backordered and will ship as soon as it is back in stock.
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27-863726 Exhaust Gasket for Mercury Mariner - 4 Pack
27-863726 Exhaust Gasket for Mercury Mariner - 4 Pack is backordered and will ship as soon as it is back in stock.
SERDAMARINE / MARINE EXHAUST PARTS
27-863726 Exhaust Gasket for Mercury Mariner - 4 Pack
Aftermarket exhaust gasket referenced to 27-863726 for the listed Mercury/Mariner 200, 225 and 250 applications, including PRO XS and SEAPRO variants. Match the engine designation, fuel-system version and original gasket reference.
Engine Applications
- Mercury/Mariner 200 (DFI / EFI).
- Mercury/Mariner 200 PRO XS.
- Mercury/Mariner 225 (EFI / DFI).
- Mercury/Mariner 225 SEAPRO.
- Mercury/Mariner 250 (DFI / EFI), 3.0L application group.
Reference Numbers
The numbers below are provided for part identification and cross-reference only; they do not alone guarantee interchangeability across different cooling passage layouts or imply original manufacturer identity. Compare the passage layout against your required exhaust interface.
| MerCruiser Stern / Out Drive | 27-863726 |
|---|---|
| Mercury Mariner | 27-818832, 27-860232 (center-riser open gasket), 27-871051, 27-87105 |
| Additional / Unprefixed References | 87105, 860232, 871051, 818832, 863726, 27-863726 |
| OMC | 0508606 |
| GLM | 32080 (center-riser open gasket) |
| Mallory | 9-61414 |
| Sierra | 18-2849-1, 18-2849-9-1 |
| RECMAR | REC27-863726 |
| Other Passage Configurations (For Comparison Only — Not Direct Replacements) | GLM 30240 / MerCruiser 27-860233 (restricted version); GLM 30220 / MerCruiser 27-860231 (closed version) |
Supplied Parts
- 4 × Exhaust Elbow and Spacer Gasket — identical gaskets with the same OEM reference: 27-863726.
Service & Installation Notes
General service guidance. Follow the service manual for your engine.
- Allow the engine to cool and prevent accidental starting.
- Compare the original gasket reference, profile and passage layout before removal.
- Clean and inspect the mating surfaces without damaging them.
- Install using the manufacturer’s procedure and inspect for leaks after service.
The Serdamarine Approach
Exhaust 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.
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