MerCruiser Engine Coupler W/Yoke 18643A 7
Triangular shaped flywheel mount engine coupler kit 18643A7 is for General Motors made MerCruiser V-6 & V-8 (305 & 350 cid) engines (1983-1993) & 454 Mag engines with Alpha stern drives. See your service or parts manual for specific applications
Mercury Marine & Quicksilver products carry a 1 year factory warranty against defects and workmanship. Serialized items such as engines, drives, and transom assemblies must be installed by a dealer for warranty to be valid.