SEAL BODY 63D-44341-00

Function and technical context

The 63D-44341-00 seal body is a critical component of the sealing system in Yamaha engines, responsible for housing and retaining the seals that seal the camshaft and other fluid passage areas within the engine. This assembly works in the lubrication and internal circulation system, where it must resist variable pressures and high temperatures to prevent oil leaks to the outside. If this body shows wear, cracks or deterioration of the seal housing, oil leaks occur that compromise engine lubrication and can cause loss of performance, localized overheating and eventual seizure of internal components.

When to replace this part?

When persistent oil drips or leaks are detected in the areas near the camshaft, or when visible wear is observed on the seal seating surfaces during maintenance, it is time to replace the body. It is recommended to check this component during each seasonal maintenance, especially on boats with intensive use or with many accumulated operating hours. Replacing this body preventively when small leaks begin to be observed avoids more expensive and lengthy repairs in the future.

Equivalent manufacturer part numbers