BUSHING 688-44322-00

Function and technical context

The 688-44322-00 bushing is a support and alignment component that is part of the internal systems of the Yamaha engine, guaranteeing the correct position and operation of critical power transmission elements. This bushing absorbs vibrations and mechanical loads, maintaining the structural integrity of the engine-drive assembly. Its wear or deterioration can cause misalignments, excessive vibration in the shaft and loss of propulsive efficiency, in addition to compromising the durability of adjacent components.

When to replace this part?

Common signs of wear include abnormal vibration in the transmission, clunking during acceleration, and visible looseness in the engine couplings. It is recommended that this bushing be inspected at each seasonal inspection or every 100-150 hours of operation, especially on boats subjected to heavy use or saltwater conditions. Preventative replacement prevents cascading damage that could require costly repairs to the engine block.

Equivalent manufacturer part numbers