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Cover gasket for Mercury Mariner 20C, 25C, 25K and 30A engines, as well as Yamaha 20C, 25B, 25D, 25V, 30A, 30G and 30H. Seals the cylinder head preventing coolant, oil and combustion gas leaks into the upper engine assembly.
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GASKET COVER 27-81031M
REC655-12414-A1
€4.14
Tax included
Cover gasket for Mercury Mariner 20C, 25C, 25K and 30A engines, as well as Yamaha 20C, 25B, 25D, 25V, 30A, 30G and 30H. Seals the cylinder head preventing coolant, oil and combustion gas leaks into the upper engine assembly.
Description
Function and technical context
The 27-81031M cover gasket is a precision sealing component that ensures the tightness of the marine engine upper assembly. It is integrated into the cylinder head closing system, preventing leaks of coolant, oil and combustion gases that could escape to the outside during engine operation. Its correct installation is essential to maintain the integrity of all internal systems, preventing water ingress, loss of lubrication pressure and contamination of operational fluids that would compromise the performance and longevity of the marine engine.
When to replace this part?
Cover gaskets progressively degrade with exposure to heat, pressure and continuous vibration of the marine engine, manifesting through small drips of coolant or oil in the cover area, gradual loss of fluid without visible cause, or presence of water in the crankcase. It is recommended to visually inspect at each seasonal inspection and replace preventively during major maintenance operations or when any sign of leakage is observed, as a deteriorated gasket can cause costly secondary damage to adjacent components and compromise boating safety.
Mercury/MerCruiser
| Marca | Modelo | Rango de serie |
|---|---|---|
| Mercury Mariner | 20C (THRU PROP. EXHAUST) | 6A9-010112 & Up / 6A9-250820 & Up / 6A9-306543 & Up / 6A9-550694 & Up |
| Mercury Mariner | 25 K | 62CK-200454 & Up |
| Mercury Mariner | 25C (THRU PROP. EXHAUST) | 695-000101 THRU 023895 / 695-250101 THRU 253861 / 695-300101 THRU 318173 / 695-550101 THRU 555959 |
| Mercury Mariner | 30A | 689-022059 THRU 689-230100 (M) / 689-105325 THRU 689-530100 (ML) / 689-321377 THRU 689-250100 (E) / 689-411947 THRU 689-550100 (EL) / 689-000366 THRU 022058 / 689-100251 THRU 105324 / 689-301911 THRU 321376 / 689-401216 THRU 411946 |
Motores Yamaha Compatibles▾
| Modelo | Años |
|---|---|
| 20C | 1992 – 2002 |
| 25B | 2001 – 2012 |
| 25D | 1992 – 2001 |
| 25V | 1996 – 2001 |
| 30A | 1992 |
| 30G | 1996 – 2000 |
| 30H | 2007 – 2014 |
Equivalent manufacturer part numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury Mariner | A1, 27-81031, 27-81031M, 81031, ✓, (actual), 81031M |
| OMC | 0509387 |
| Yamaha | 655-12414-A1, 655-12414-A1-00, 655124140000, 65512414A1, 65512414A100 |
Product Details
REC655-12414-A1
Specific References
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