OEM MerCruiser/Quicksilver exhaust water shutter / flapper assembly 807166A3
Water shutter 807166A3 is for use on most 1997 and older MerCruiser V6 & V8 engine y-pipe sterndrive installations. This shutter is 2.5 in. diameter at the cross pin. Check your owner's manual or parts manual for exact fitment. Also known as a water flapper, the shutter is open for exhaust to exit the engine and closes when the engine is not running to keep water from flowing back to the engine causing corrosion or serious damage to the engine. Fits inline inside the exhaust system for sterndrive installations. Installed downstream of the flexible union between the elbow and Y-pipe.
What’s included: 1 pair of exhaust water shutter.
1 pair required for one engine
OEM MerCruiser/Quicksilver exhaust water shutter / flapper assembly 807166A3
Water shutter 807166A3 is for use on most 1997 and older MerCruiser V6 & V8 engine y-pipe sterndrive installations. This shutter is 2.5 in. diameter at the cross pin. Check your owner's manual or parts manual for exact fitment. Also known as a water flapper, the shutter is open for exhaust to exit the engine and closes when the engine is not running to keep water from flowing back to the engine causing corrosion or serious damage to the engine. Fits inline inside the exhaust system for sterndrive installations. Installed downstream of the flexible union between the elbow and Y-pipe.
What’s included: 1 pair of exhaust water shutter.
1 pair required for one engine
