CRANKSHAFT PART 2 827142M

Function and technical context

The crankshaft is the fundamental component of the engine that converts the reciprocating movement of the pistons into continuous rotation of the drive shaft, transmitting the power generated in the combustion chambers to the boat's propeller. This part works within the marine propulsion system, supporting extreme mechanical stress derived from the controlled explosions that occur in each cycle of the four-stroke engine. Its wear or deterioration causes loss of power, abnormal vibrations in the engine structure, and in advanced cases, total blockage of the propulsion system, leaving the boat without the ability to maneuver.

When to replace this part?

Symptoms of crankshaft wear include noticeable vibrations throughout the engine structure, abnormal metallic noises coming from the crankcase, progressive loss of maximum revolutions and increased fuel consumption for no apparent reason. Although there is no fixed maintenance interval established as with impellers or anodes, it is recommended to inspect the condition of the crankshaft during each summer season inspection and pay special attention to any vibration anomalies; Preventive replacement of this part prevents costly emergency repairs at sea and ensures the operational reliability of the vessel.

Engine Compatibility

Mercury/MerCruiser

Equivalent manufacturer part numbers