YAMAHA BUSHING 6E0-45317-09 PAF4-03000002

Function and technical context

The 6E0-45317-09 bushing is a support and guide component that is part of the transmission and drive system of the Yamaha engine. This bushing acts as a controlled friction and alignment element between rotating axles, ensuring that power transmission from the crankshaft is carried out with geometric precision. Its deterioration causes excessive play between components, generating abnormal vibrations in the shaft line, reduction in transmission efficiency and, in advanced cases, progressive damage to adjacent bearings and seals that compromise the tightness of the engine.

When to replace this part?

Alignment bushings show wear when vibrations occur at rest or idle, metallic noises coming from the engine block or gradual loss of precision in the transmission engagement. It is recommended to inspect its condition during each seasonal maintenance, especially on boats with intensive use or with high accumulated operating hours. Preventive replacement avoids critical situations in navigation where total failure of the bushing can leave the boat without propulsion capacity.

Equivalent manufacturer part numbers