Description

Sierra’s 18-3751 Spanner Nut fits IA/IB/IC and EZ Shift, MC-I, R, MR, Alpha One, Gen II, Vazer, TRS, Bravo I and IX models. It is interchangeable with GLM 21120, Mallory 9-72155, Mercruiser Stern Drive 35912, 52834, 79448, Mercury Marine 79448, 8M2000347, 8M2011027. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Mercury marine and Mercruiser stern drive applications
Fits IA/IB/IC and EZ Shift, MC-I, R, MR, Alpha One, Gen II, Vazer, TRS, Bravo I and IX models
Interchangeable with GLM 21120, Mallory 9-72155, Mercruiser Stern Drive 35912, 52834, 79448, Mercury Marine 79448, 8M2000347, 8M2011027
Each Sierra product meets or exceeds the original equipment part it replaces