Exhaust Flapper Protector Valve – Fits MerCruiser (Replaces 12644A1, 12644Q01) 600HP ensuring reliable performance across a

ensuring reliable performance across a range of inboard engines

To guarantee a perfect fit

designed for clear identification on outdoor equipment

which fits inside a permanent filter housing on the engine

Simply ensure the engine is off

Exhaust Flapper Protector Valve – Fits MerCruiser (Replaces 12644A1, 12644Q01) 600HP ensuring reliable performance across aProduct Details This 4" Exhaust Flapper Protector Valve is designed for MerCruiser stern drive applications. The rubber flapper prevents water from entering the exhaust system through the outlet while allowing exhaust gases to exit freely. It is made from weather resistant EPDM rubber with an integrated UV stabilizer to ensure longevity. This part serves as a direct replacement for MerCruiser parts 12644A1 and 12644Q01. It also provides an interchange