THICK 676-45587-00-75

Function and technical context

The supplement disc ref. 676-45587-00-75 is a critical component of the transmission system in Yamaha engines, responsible for power transfer and regulation of mesh between moving elements. This disc works under conditions of constant friction and pressure, supporting acceleration and deceleration cycles that generate progressive wear. Its deterioration compromises the efficiency of the transmission, causing loss of traction, abnormal vibrations and in extreme cases, failures in the boat's propulsion.

When to replace this part?

The supplementary discs show wear characterized by slipping in the transmission, metallic noises during gear changes and a notable reduction in engine grip. It is recommended to inspect this component during each annual maintenance check or every 300 hours of navigation, especially in boats subjected to intensive use or navigation in salt water. The preventive replacement of this disc prevents secondary damage to the transmission and guarantees operational reliability in long-distance navigation.

Equivalent manufacturer part numbers