6G8-45587-30 Yamaha WASHER/SHIM

Genuine Yamaha precision shim or thrust washer (6G8-45587-30), part of the 45587-series shim family used in Yamaha outboard lower unit and drive assemblies. Related shims in this series include 6E8-45587-10-20 (1.20mm thickness) and other thickness variations. These shims are used to control gear mesh tolerances and backlash in the propeller shaft and drive gear assemblies. Used during lower unit overhaul or when adjusting gear clearances. Exact thickness required depends on assembly specifications.