12 3/4" Ring Gear for Mercruiser OMC 2.5L, 3.0L, Volvo Penta V6 & V8,

12 3/4" Flywheel Ring Gear for GM Marine Engines

Used on OMC & Mercruiser 2.5L & 3.0L Four Cylinder

Used on early Volvo Penta V6 & V8, AQ200, AQ175, AQ205, AQ211, AQ271 ...

Engines using starter motors with 1 long & 1 short bolt, RM0002