Water Pump Impeller Kit – Fits Mercury/Mariner 30-70 HP (Replaces 77177A3, 46-77177A3) 40-50HP or if the engine has

or if the engine has been sitting for a long period

and milky-looking engine oil

under cowling on outboard engine Fuel Type Gasoline Connection 5/16" (8mm) ID fuel line Housing Material Plastic Housing Color White/Clear Fitting Type Barbed hose connection Thread Size N/A (non-threaded) Other Technical Attributes Includes hose clamps for installation What’s in the Box

This kit serves as a direct replacement for Sierra interchange numbers 18-7044 and 18-7044-1

Water Pump Impeller Kit – Fits Mercury/Mariner 30-70 HP (Replaces 77177A3, 46-77177A3) 40-50HP or if the engine hasProduct Details This Water Pump Impeller Kit is designed for Mercury and Mariner 3070 HP 2 stroke outboard engines manufactured between 1977 and 1997. It ensures your engine's cooling system functions efficiently, preventing overheating and potential damage. The kit serves as a direct replacement for Mercury part numbers 77177A3 and 46 77177A3, as well as Sierra 18 3324 and GLM 12100, providing a comprehensive solution for your maintenance needs.