Mecruiser-18-5910
Mecruiser-18-5910 Replaces Mercruiser 50-12177A2, Mercruiser 50-99418A2
Heavy Duty, No Core, Clockwise, 9 Tooth, Small block V-6 and V-8 GM engine with 14 1/4" flywheel and bottom mount, offset bolt pattern. For Standard Rotation Engines.