BOARD 27-83940 REC682-12414-A1

Function and technical context

This gasket is a critical component at the interface between mechanical surfaces of Mercury, Mariner, Mercruiser and Yamaha marine engines. Its main mission is to seal the connection between parts to prevent leaks of cooling, lubrication and fuel fluids under variable pressure and temperature conditions typical of the marine environment. The deterioration or degeneration of this gasket would compromise the tightness of the system, allowing the infiltration of salt water and the loss of vital fluids, which would quickly lead to overheating, internal corrosion and engine failures in navigation.

When to replace this part?

The sealing gaskets require inspection and replacement when visible drips are detected in the sealing area, loss of cooling fluid or changes in engine operation after hours of intense use. It is recommended to inspect the condition of this gasket during each seasonal maintenance and replace it preventively every 500-800 hours of operation or when disassembly work is carried out in the area where it is installed. Changing the gasket preventively avoids unexpected breakdowns on the water and costly repairs that compromise the safety of the boat.

Engine Compatibility

Mercury/MerCruiser

Equivalent manufacturer part numbers