Crankshaft

Crankshaft When replacing a prior crankshaft number the flywheel is no longer mounted by 6 bolts. This newer version is a 4 bolt flywheel mount and dowell pin. Marked R121027 Marked R54619, R121027 or R104523 Replaces: RE41763 (MARKED R104523), RE33689 and RE19085 (MARKED R81113)