Description

Sierra’s 18-9856 Drive Gear Shimming Tool is used to measure upper drive clearance. Designed for use with Mercruiser MC-I, R-MR, Alpha I, and Alpha I/Gen II drive units. Includes one drive gear shimming tool per package. It is interchangeable with GLM 90180 and Mercury Marine 91-60526T. Each Sierra product meets or exceeds the original equipment part it replaces.
Used to measure upper drive clearance
Designed for use with Mercruiser MC-I, R-MR, Alpha I, and Alpha I/Gen II drive units
Includes one drive gear shimming tool per package
Interchangeable with GLM 90180 and Mercury Marine 91-60526T
Each Sierra product meets or exceeds the original equipment part it replaces