Coupling Assembly for Alpha MerCruiser, Replaces Mercury Marine 18643A5 - MC51-18643:
- Barr Marine MC51-18643 Coupling Assembly.
- Fits Mercury Marine MCM 3.0L (1999 & Newer), 4.5L MPI, GM V-6 & V-8 (305 & 350 cid) engines (1993 & Newer) with Alpha sterndrives with 14" flywheel, 3" crankshaft bolt pattern, 1-piece rear main seal.
- Made in USA
Features:
NO YOKE
Includes mounting bolts, rubber bumpers and washers
Cross Reference:
ENGINEERED MARINE PRODUCTS
93-93203
MALLORY MARINE
9-72507
SIERRA MARINE
18-2323