MerCruiser 42421A5 470 3.7L 120hp 140hp Exhaust Elbow Lower Tube Pipe 1983-1989 80hp In short this manifold is

In short this manifold is for replacing Early 1990's MerCruiser 4cyl Engines with shift bracket mounted to the valve cover

MERCURY 200 (20hp

This is choke assembly that mounts to the top of the intake manifold to a thermally controlled choke in the carburetor

Applications OEM SLIDING CLUTCH 52-37963

but you'll need some sort of 1/4" bolts or screws

MerCruiser 42421A5 470 3.7L 120hp 140hp Exhaust Elbow Lower Tube Pipe 1983-1989 80hp In short this manifold isItem Details Typically found on MerCruiser 470 3. 7L & 3. 7LX 4cyl Models 1984 1989 (Possibly some 1983 models) that use this style of exhaust system as apposed to the one that had 2 halves but was joined together by bolts rather than a rubber boot. Overall Good condition The replacement part number for the water shutter is 60930 or Sierra 18 2727 Parts Included Stamped 42420 42421A5 Exhaust Elbow Assembly Lower (Also Found on MerCruiser 120hp 140hp