Exhaust Water Shutter Kit – Fits MerCruiser 3.0-4.2L (Replaces Mercury/MerCruiser 807166A3, Sierra 18-2732-9) 4.4HP Reconnect the battery and check

Reconnect the battery and check for leaks and proper operation once the boat is in the water

Post-installation squealing usually indicates incorrect tension

Product Type Water Pump Impeller Installation Direct Replacement Fuel Type Gasoline Housing Material Plastic Hub Dimensions Overall Diameter: 41

You may need to remove other components for access

Exhaust Water Shutter Kit – Fits MerCruiser 3.0-4.2L (Replaces Mercury/MerCruiser 807166A3, Sierra 18-2732-9) 4.4HP Reconnect the battery and checkProduct Details This Exhaust Water Shutter Kit is designed for MerCruiser 3. 0L, 3. 6L, and 4. 2L inboard and sterndrive engines from model years 19941997. It functions as a flexible check valve, preventing water from flowing back up the exhaust system and into the engine. This kit is a direct interchange for several part numbers, including Mercury MerCruiser 807166A3, Sierra 18 2732 9, GLM 89170, and Mallory 9 42802. Designed for direct replacement,