MerCruiser 32491A1 Upper Gearcase Housing Cap Cover Early IA IB IC EZ 1963-1966 Harmonic Balancer Found on Mercury Mark 40

Found on Mercury Mark 40

0L GM 305 V8

5 1/8" opening

Item Details & Compatibility For MerCruiser Most 496 8

but equivalent and replaces to any of the following numbers: (Does not have provision for the extra water outlet as seen on some variants with these same casting numbers)

MerCruiser 32491A1 Upper Gearcase Housing Cap Cover Early IA IB IC EZ 1963-1966 Harmonic Balancer Found on Mercury Mark 40Part Number(s) Included MerCruiser 32491 32491A1 Upper Gearcase Housing Cap General Application Compatibility This would have only been found on the Early "alpha one" applications 1963 1966 MerCruiser I 1963 MerCruiser IA IB IC 1964 MerCruiser IA IB IC (EZ Shift) 1965 1966 Other Details Freshwater Used Parts Original Paint Overall Good Condition! Purchase with confidence!