YAMAHA IMPELLER 6CE-44352-00

Function and technical context

The water pump impeller is the fundamental rotating component of the cooling system of Yamaha engines. This turbine generates the movement necessary to circulate the coolant through the internal passages of the engine, absorbing the heat generated during combustion and dissipating it to the outside. An impeller failure causes poor coolant circulation, which triggers progressive overheating of the engine and can cause severe damage to gaskets, cylinders and internal components if not detected in time.

When to replace this part?

Water pump impellers wear rapidly due to cavitation, fin erosion and corrosion caused by continuous contact with salt or contaminated water. Typical symptoms include increased running engine temperature, loss of water flow through the relief ports, and abnormal noises in the pump area. It is recommended to inspect the impeller every navigation season and replace it preventively every 300-400 hours of operation or if it is detected that the fins show visible erosion; A preventive replacement prevents the engine from overheating in situations of maximum demand or navigation in contaminated water.

Equivalent manufacturer part numbers