Mercruiser Pre-Vortec Engine Coupler | Sierra 18-2172
Mercruiser Pre-Vortec Engine Coupler | Sierra 18-2172
Sierra Mercruiser Pre-Vortec Engine Coupler 18-2172
Engine coupler connects Mercruiser GM engines to stern drives.
- Engine coupler is used when replacing Mercruiser V6 or V8 2 piece rear main seal engines with 3 ½ inch crankshaft bolt pattern to a newer 1 piece engine with 3 inch bolt pattern
- Replaces Mercury 14505A2
- Replaces OMC 775495
- Replaces Mallory 9-72500
