Wet-Joint Exhaust Manifold Gasket Kit for MerCruiser Model 140 — 27-53354
Wet-Joint Exhaust Manifold Gasket Kit for MerCruiser Model 140 — 27-53354 is backordered and will ship as soon as it is back in stock.
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Wet-Joint Exhaust Manifold Gasket Kit for MerCruiser Model 140 — 27...
Wet-Joint Exhaust Manifold Gasket Kit for MerCruiser Model 140 — 27-53354 is backordered and will ship as soon as it is back in stock.
GH MARINE / BELLOWS & RELATED PARTS
About this part
Wet-joint exhaust manifold gasket repair kit for MerCruiser Model 140 sterndrive installations using the GM 181 CID inline-four (4-cylinder) engine from 1968 through 1982. The kit supplies the exhaust manifold-to-cylinder-head gasket, open and closed-cooling manifold-to-elbow gaskets, a Rochester carburetor mounting gasket, and a drain plug with O-ring referenced to component numbers 27-53354, 27-99777Q02, 27-92720, 27-64692, and 8M0119211.
Match the application
Use this kit when servicing the exhaust manifold gasket interfaces and drain plug on the specified 1968–1982 MerCruiser Model 140 wet-joint application. Confirm the engine model, year, GM 181 CID inline-four configuration, and wet-joint exhaust arrangement before purchase, and do not select a gasket solely because engine displacement is similar.
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MerCruiser · Model 140
Year: 1968–1982
GM 181 CID inline-4 (4-cylinder) sterndrive engine with a wet-joint exhaust manifold design. Compare the installed manifold-to-elbow connection and select the open-cooling gasket referenced to 27-99777-2 / 27-99777Q02 or the closed-cooling gasket referenced to 27-92720 to match the cooling arrangement on your engine.
Applies with the stated conditions
Numbers to compare
The listed gasket and drain-plug reference numbers identify individual service components rather than a single OEM part number for the complete kit.
| Primary component references (Mercury / MerCruiser) | 27-53354 (exhaust manifold-to-cylinder-head gasket), 27-99777 / 27-99777-2 / 27-99777Q02 (open-cooling manifold-to-elbow exhaust gasket), 27-92720 (closed-cooling manifold-to-elbow exhaust gasket), 27-64692, 8M0119211 |
|---|---|
| Mercury Mariner / MerCruiser reference numbers | 27-32910, 27-52076, 27-53354, 27-64692, 27-92720, 27-99777, 27-99777-2, 27-997771, 27-997772, 27-99777B2, 27-99777Q02, 32910, 52076, 53354, 64692, 802377, 806608, 806608A02, 806608A1, 806608Q01, 8M0119211, 92720, 997771, 99777B2, 99777Q02 |
| OMC reference numbers | 0315055, 0508561, 0508563, 0508579, 0508615, 0777923, 0778121, 0908079, 315055, 508561, 508563, 508579, 777923, 908079 |
| Sierra reference numbers | 18-0954, 18-2833, 18-2912 |
| GLM reference numbers | 31520, 31570, 32630 |
| Mallory reference numbers | 9-61415, 9-61417 |
| Additional reference numbers | 18-0356, 18-0937, 47-315055 |
Technical details
| Product type | Wet-joint exhaust manifold gasket repair kit |
|---|---|
| Brand | GH Marine |
| Exhaust joint configuration | Wet-joint |
| Engine configuration | MerCruiser Model 140, GM 181 CID, inline-4 (4-cylinder), 1968–1982 |
| Manifold-to-elbow cooling options | Includes both open-cooling (referenced to 27-99777-2 / 27-99777Q02) and closed-cooling (referenced to 27-92720) manifold-to-elbow gaskets |
Supplied contents
| Component | Details & Reference |
|---|---|
| Exhaust manifold-to-cylinder-head gasket | Included (Qty: 1) · Reference: 27-53354 |
| Open-cooling manifold-to-elbow exhaust gasket | Included (Qty: 1) · Reference: 27-99777 / 27-99777-2 / 27-99777Q02 |
| Closed-cooling manifold-to-elbow exhaust gasket | Included (Qty: 1) · Reference: 27-92720 |
| Rochester carburetor mounting gasket | Included (Qty: 1) · Reference: 27-64692 |
| Drain plug with O-ring | Included (Qty: 1) · Reference: 8M0119211 |
Workshop sequence
General workshop guidance only; use the service procedure for your exact drive or engine configuration.
- Confirm that the engine is a 1968–1982 MerCruiser Model 140 (GM 181 CID inline-4) equipped with a wet-joint exhaust manifold before disassembly.
- Compare the removed manifold-to-elbow gasket against the supplied open-cooling gasket (referenced to 27-99777-2 / 27-99777Q02) and closed-cooling gasket (referenced to 27-92720) so the water passage layout matches the installed cooling arrangement.
- Clean and inspect the cylinder head, exhaust manifold, exhaust elbow, Rochester carburetor mounting surface, and drain plug port before installing the new gaskets and drain plug with O-ring according to the service manual for your engine.
About GH Marine
GH Marine focuses on bellows and related marine service parts. Compare the application details, reference numbers and supplied contents together to select the part for your repair.
Delivery information
Estimated delivery: 7–15 calendar days.
Help with your order
For application questions, have your drive or engine identification and required part number ready.
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