2x For Mercruiser Exhaust Y Pipe Water Shutter Flapper V6 V8 Engines 807166a1
Price:
$ 32
- Condition: New
Seller notes
For MerCruiser Exhaust Y Pipe Water Shutter Flapper V6 V8 Engines 807166A1 On any engine with through-the-prop exhaust, the tops of the exhaust “Y” pipes on both banks have rubber flappers at the top where they connect with the rubber exhaust hoses that clamp to the exhaust manifolds. The flappers act as one-way valves, to let exhaust flow out of the engine, into the Y pipe, and out the propeller. They’re important because they also prevent water from back-flowing into the exhaust stream a...
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