if required for your model
Remove the fuel rail mounting bolts and lift the rail assembly
the 3-inch character height meets the minimum size requirements set by the U
Locate the old exhaust bellow connecting the transom assembly to the sterndrive
bogging down under acceleration
Exhaust Flapper – Fits MerCruiser Stern Drives 2.5L, 3.0L, 3.7L, V8 Jackshaft (Replaces 60930, 18-2727) 435HP if required for your modelProduct Details This Exhaust Flapper with Grommets is designed to prevent water from entering the engine through the exhaust system on MerCruiser Stern Drive models. It is compatible with 4 Cylinder 2. 5L, 3. 0L, and 3. 7L engines from 19821998, as well as V8 engines with a Jackshaft from 1985 and newer. It serves as a direct cross reference for Mercury MerCruiser part 60930 25 43809, Sierra 18 2727, and Mallory 9 42800. Engineered for direct fit