Yamaha - Housing, water pump - 663-44341-00-00 Mercury MerCruiser Cooling System Water Hoses Stop-tilt-portWARNING: This product can expose

Stop-tilt-portWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer

and lifespan

guarding the drive against corrosion to protect performance and longevity

This product has been superseded by: 866322A01

Water Separation – Blocks water and debris

Yamaha - Housing, water pump - 663-44341-00-00 Mercury MerCruiser Cooling System Water Hoses Stop-tilt-portWARNING: This product can exposeYamaha Water Pump Housing Cooling System Component 663 44341 00 00 Overview The water pump housing is a vital component of the Yamaha outboard cooling system, designed to enclose and protect the internal water pump components while directing water flow efficiently through the system. It plays a key role in maintaining proper engine temperature by ensuring consistent water circulation. Built to OEM specifications, this housing delivers precise fit,