MerCruiser 4cyl 470 3.7L 170hp 180hp 190hp Bolt Set Exhaust Manifold Coupler Heads For use with all Alpha

For use with all Alpha One Gen 1 Units (1984-1991) (XD arms and Pre-XD arms 14034A3 & 14035A3 )

In 1976 ONLY the 120hp / 140hp / 165hp GM inline models w/ "M" Suffix

Nut: 11-826135

Crankshaft: 554326

3L V6 185hp / 5

MerCruiser 4cyl 470 3.7L 170hp 180hp 190hp Bolt Set Exhaust Manifold Coupler Heads For use with all AlphaItem Details Removed from a 1985 1986 MerCruiser 470 170hp With an Aluminum Exhaust Manifold Overall Good Condition This is just an assortment of bolts removed from that engine. Not everything is here, but basically just what you can see in the pictures. The head bolts are in a separate listing May work with other years & Models Parts Included You will receive everything in the pictures some of the major items listed below. Coupler Bolts 10 37612