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a melted water pump housing due to excessive heat
and test the engine's cooling stream
not a multi-groove serpentine belt
Features a manual
most manufacturers recommend replacing the water pump impeller every 1-2 years or every 100-200 hours of operation
Exhaust Water Shutter Assembly – Fits MerCruiser Diesel 3.0L, 3.6L, 4.2L Engines (Replaces 807166A3) 120-300HP a melted water pump housingProduct Details This Exhaust Water Shutter Assembly is designed for MerCruiser Diesel engines including the 3. 0L, 3. 6L, and 4. 2L series models manufactured between 1992 and 1995. It features a butterfly style water flapper design that provides a direct fit replacement for the exhaust Y pipe, preventing water from entering the engine through the exhaust. It serves as a direct replacement for Mercury Marine 807166A3, Sierra 18 2732 9, and GLM 89170.
