ENGINE BASE GASKET 27-8252310 PAF25-00000013

Function and technical context

The engine base gasket is a critical sealing component that seals the joint between the engine block and the base plate, preventing coolant and oil leaks into the lubrication and cooling circuits. This part works under constant pressure and repeated thermal cycles, subject to the vibrations typical of the operation of four-stroke marine engines. Its degradation or breakage allows the penetration of salt water into the internal chambers of the engine, accelerating corrosion and progressively compromising the performance of the propellant.

When to replace this part?

Symptoms of wear include visible dripping of coolant or oil in the lower area of ​​the engine, loss of pressure in the cooling circuit and abnormal increase in temperature during navigation. It is recommended to check the condition of this gasket during each seasonal maintenance and replace it preventively every five to eight years, or when signs of aging of the elastomer are detected. The preventive change avoids emergency repairs in navigation and protects the engine block from irreversible internal damage.

Engine Compatibility

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers