Yamaha - Housing, water pump - 663-44341-00-00 Mercury MerCruiser Cooling System Water Hoses The motor will emit a

The motor will emit a sequence of distinct auditory chirps

guarding the drive against corrosion to protect performance and longevity

This product has been superseded by: 866322A01

If your engine falls within the 40–125 HP range and you’re looking for smooth planing

CARBURETOR

Yamaha - Housing, water pump - 663-44341-00-00 Mercury MerCruiser Cooling System Water Hoses The motor will emit aYamaha 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,