32-90949T 3" I.D. x 4" Exhaust Tube Hose for MerCruiser MCM
32-90949T 3" I.D. x 4" Exhaust Tube Hose for MerCruiser MCM is backordered and will ship as soon as it is back in stock.
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32-90949T 3" I.D. x 4" Exhaust Tube Hose for MerCruiser MCM
32-90949T 3" I.D. x 4" Exhaust Tube Hose for MerCruiser MCM is backordered and will ship as soon as it is back in stock.
SERDAMARINE / MARINE EXHAUST PARTS
Exhaust Tube Hose / Bellows — 3 in. (76 mm) I.D. x 4 in. (102 mm) Length
This aftermarket exhaust tube hose (exhaust bellows) is referenced to Mercury 32-90949T for MerCruiser Stern / Out Drive MCM exhaust systems, including 470, 485, 185, 205, 898, 228, and 260 models. It is configured with a 3-inch (76 mm) inside diameter and a 4-inch (102 mm) length for the specific exhaust connection requiring these exact dimensions.
Configuration & Specifications
| Inside Diameter (I.D.) | 3 in. (76 mm) |
|---|---|
| Length | 4 in. (102 mm) |
Engine Applications
This exhaust tube hose is used on the following MerCruiser Stern / Out Drive MCM models where the exhaust layout specifies a 3 in. (76 mm) I.D. by 4 in. (102 mm) long hose. Use Mercury 32-90949T and the 3-inch I.D. by 4-inch length dimensions as the primary identification points rather than selecting by the general description "exhaust bellows" or appearance alone, as a similar-looking 4-inch diameter hose or upper exhaust tube will not fit.
- MerCruiser MCM 470 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 485 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 185 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 205 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 898 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 228 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
- MerCruiser MCM 260 — Requires 3 in. (76 mm) I.D. x 4 in. (102 mm) length exhaust tube hose. Fits when specified
Additional model-specific applications
- MerCruiser 120, 1982–1995, Inline 4, 153/181 CID, 4-cylinder, WET JOINT, old-style and new-style exhaust tube arrangements.
- MerCruiser 140, 1982–1995, Inline 4, 153/181 CID, 4-cylinder, WET JOINT, old-style and new-style exhaust tube arrangements.
Reference Numbers
The numbers below are provided for part identification and cross-reference. They do not indicate manufacturer identity or guarantee automatic interchangeability without matching the required 3 in. I.D. x 4 in. length configuration.
| Primary OEM References (Mercury / Mariner) | 32-90949T, 3290949T, 90949T |
|---|---|
| Aftermarket Hose References | Sierra Marine 18-2761, Mallory Marine 9-72809, GLM 89090 |
| Additional Associated References | Mercury Mariner 32-90949, Mercury Mariner 54-815504372, Sierra 9-72809, GLM 01100 |
Supplied Parts
This listing is for the individual exhaust tube hose (non-kit configuration).
- Exhaust tube hose / bellows (3 in. I.D. x 4 in. length)
Service & Installation Notes
General service guidance only. Use the service manual for your exact engine and exhaust configuration.
- Ensure the engine is completely shut off and cooled down, and disconnect the battery or disable the ignition to prevent accidental starting before servicing the exhaust system.
- Verify that the mating exhaust pipes or elbows are clean, free of scale or old rubber residue, and match the 3 in. (76 mm) inside diameter and 4 in. (102 mm) length of the replacement hose.
- Position and secure the hose and clamps according to your MerCruiser service manual so the hose is properly seated without kinking or straining adjacent exhaust components.
- After installation, inspect all exhaust connections during initial operation. If any exhaust gas or water leak, abnormal odor, or overheating occurs, stop the engine immediately and inspect the joint.
Questions Before Replacement
How do I distinguish this hose from other MerCruiser exhaust bellows or tubes?
Measure the inside diameter and overall length of the existing hose and match the OEM reference number. This part is specifically a 3-inch (76 mm) I.D. by 4-inch (102 mm) long exhaust tube hose referenced to Mercury 32-90949T, and is distinct from 4-inch I.D. exhaust hoses or lower drive exhaust bellows.
Is this supplied as a complete kit with clamps?
No. This is a non-kit listing for the exhaust tube hose itself.
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