Exhaust Flapper Water Shutter for Mercruiser 807166A3 Y-Pipe 1982-1996
- Exhaust Water Flapper for Y-Pipe Exhaust Mercuiser.
- Replaces Part#: 807166A3 / Sierra 18-2732-9.
- Fits Mercruiser: V6 / V8 with 4" Y-Pipe & Round Pin Holes 1982-1996.
- Fits into the Y-Pipe on most V6 & V8 models 1982-1996. Prevents water from backing into the manifold. Not for 4.3L Models with 1 piece manifold.
- OE quality aftermarket replacement, Exact item pictured.