Boyesen Supercooler Water Pump Kit Yamaha Yz/Wr426F 00-02, Yz450F 03-09, Wr450F 03-15 Magnesium Colour:Magnesium POM pulley with brass bearing

POM pulley with brass bearing for smooth feel and extended wear resistance

· Kawasaki KX500Â 1997

FE 450 14-16

water resistant with a waterproof zip

Boyesen Supercooler Water Pump Kit Yamaha Yz/Wr426F 00-02, Yz450F 03-09, Wr450F 03-15 Magnesium Colour:Magnesium POM pulley with brass bearingReduced to its common reasons for being essential in an internal combustion engine, cooling system efficiency can have a dramatic influence on the longevity of the internal working components of your bike's engine. These include the reduction of thermal stresses and strains caused by pre ignition and detonation (particularly the latter), distorted cylinder bores, potential damage to pistons and rings, and damaged valve train components.