863631T1 Manual Drain Water Distribution Housing for Mercury Mercruiser | JLM Marine family-yamaha-f150tlr Start the engine and test

Start the engine and test for proper operation

A seal puller may be helpful

and cylinder configuration against the compatibility table above

noting their orientation

ensuring optimal performance and longevity

863631T1 Manual Drain Water Distribution Housing for Mercury Mercruiser | JLM Marine family-yamaha-f150tlr Start the engine and testManual Drain Water Distribution Housing 863631T1 for Mercury Mercruiser Inboard This Manual Drain Water Distribution Housing is designed specifically for MerCruiser inboard engines. It serves as a critical component in your engine's cooling system, ensuring proper water flow and distribution throughout the engine block. This housing directly replaces OEM part numbers 863631T1 and 863802T2, providing a reliable aftermarket solution for your MerCruiser