MerCruiser 816329A3 816978C One Piece Exhaust Manifold 4cyl 140hp 3.0L 1990-1994 Harmonic Balancer 1964 1965 1966 1967 1968

1964 1965 1966 1967 1968 1969 1970 1971

25) (Stainless) (x4)

Starter Pawl: 30596

This is for  a OMC Stringer Power Steering Unit Early 80's V6 V8 Engines 400 800

Mounting adapter: 308185

MerCruiser 816329A3 816978C One Piece Exhaust Manifold 4cyl 140hp 3.0L 1990-1994 Harmonic Balancer 1964 1965 1966 1967 1968Part Number(s) Included 816329A3 Intake Exhaust Manifold Assembly One Piece Construction (No End Caps on this) Stamped 816978C ***Make sure to use a 27 96429 Mounting Gasket with this manifold*** General Application Compatibility This seems to only have been found on MerCruiser 3. 0L Models 1990 1994 It appears the 3. 0LX models used a different Exhaust manifold. You should check the casting number on your manifold to make sure it matches Other