MerCruiser 816329A3 816978C One Piece Exhaust Manifold 4cyl 140hp 3.0L 1990-1994 Distributor Ignition Parts Check with your parts manual

Check with your parts manual or contact me if you have any questions of compatibility

3L 4cyl Models 1987-1990

The internal surfaces all look good & ready to accept your internals

The last 2 digits of the part number represent the cable length

This was superseded by these part numbers: 628-6100 / 628-6100A2 / 628-6100T

MerCruiser 816329A3 816978C One Piece Exhaust Manifold 4cyl 140hp 3.0L 1990-1994 Distributor Ignition Parts Check with your parts manualPart 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