Seller notes

Boyesen Supercooler Kit Blue #WPK-38CL fits Yamaha YZ450F/WR450F/YZ450FX Product Details The Boyesen Super Cooler water pump kit is an aluminum investment cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system. This high flow, hydrodynamic water pump kit has been tested and designed to flow more coolant. By increasing the flow, the engine will run cooler at a more constant temperature. Investment cast Aluminum construction Increa...

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