Shift Shaft Bushing – Fits MerCruiser MC-I, R, MR, Alpha One & Gen II Stern Drives (Replaces 23-805041A2) 15hp A thermostat stuck open will

A thermostat stuck open will prevent the engine from warming up

Ensure the engine has completely cooled before beginning work

visually compare your old part to our photos

The open side of the lip seal

1 x Carburetor Assembly

Shift Shaft Bushing – Fits MerCruiser MC-I, R, MR, Alpha One & Gen II Stern Drives (Replaces 23-805041A2) 15hp A thermostat stuck open willProduct Details This is a bell housing Shift Shaft Bushing kit designed to fit MerCruiser stern drives. It is compatible with MC I, R, MR, Alpha One, and Alpha One Generation 2 (Gen II) models produced up to serial number 0F094774 (approximately 1993). This kit provides a direct replacement for MerCruiser part numbers 23 805041A2, 23 79373A1, 23 79373, and 23 45588, as well as several other aftermarket equivalents. Installs in the bell housing.