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Shutter Exhaust Flapper 3 Inch Butterfly Design for Mercruiser 73-up 60930

Part #: MER60930


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3 Inch Flapper Water Shutter Butterfly Design for various Mercruiser 1973 and newer with a 3 Inch diameter Y pipe. We call this the butterfly design because it flaps on each side of the center rather than the whole piece moving as one. This keeps the water from surging up the exhaust and getting into you motor through the exhaust riser.
Genuine Mercury Mercruiser Parts

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