BUSHING 880134

Function and technical context

The 880134 bushing is a mechanical retaining and guiding component that works in the transmission and coupling systems of Mercury, Mariner and Mercruiser marine engines. Its main function is to guarantee the precise alignment of the moving parts of the engine, maintaining the concentricity of the transmission shafts and ensuring that the loads are distributed evenly. A worn or defective bushing causes excessive play in the transmission, resulting in abnormal vibrations, loss of propulsion power and, in severe cases, damage to adjacent bearings and cooling systems that depend on proper engine alignment.

When to replace this part?

Typical symptoms of a worn bushing include noticeable vibrations in the steering column, metallic noise from inside the engine during acceleration, and loss of rigidity in the transmission manifested by excessive play. Although there is no fixed maintenance interval like other wear components, it is recommended to inspect the integrity of the bushing during each seasonal inspection, especially after a winter or prolonged period of storage. Preventively replacing this part avoids later complex diagnoses and guarantees that the engine maintains its original alignment performance, prolonging the useful life of the entire transmission.

Engine Compatibility

Mercury/MerCruiser

Equivalent manufacturer part numbers