Seller notes

New Exhaust Flappers Water Shutters Mercruiser 4.3 5.0 5.7 7.4 305 350 454 502 Used on many Mercruiser stern drive V6 and V8 engines. They keep water from entering the engine through the exhaust and wear out or break overtime. These do NOT fit V6 engines that came with the one piece manifolds ( They use 807166A2, note only one digit difference in the part number and do not interchange with the ones in this listing) SHIPPING FREE Before placing an order, please confirm that this is the item you n...

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