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Replacement Parts

Engine Cooling & Climate Control

Boyesen WPK-38B Supercooler Black Water Pump Kit

Boyesen WPK-38B Supercooler Black Water Pump Kit
- Fits: Yamaha YZ450F 2003-2009
- By casting a totally new water pump cover, Boyesen was able to maximize the flow through the unit; Boyesen's design takes advantage of everything from Bernoulli's effect to biological studies
- Unlike the stocker, Boyesen's water inlet has an increasing diameter and artfully curved shape; this is a vast improvement over most stock inlets, which decrease in diameter as they near the impeller and have a 90-degree bend at the pump
- Patented nautilus style impeller for hydrodynamic efficiency, reducing heat, gaining horsepower and extending engine life
- Asbestos-free gasket is bound with nitrile for tight, leak-free seal
The Boyesen Supercooler 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. Fits: Yamaha YZ/WR426F 00-02, WR450F 03-15, YZ450F 03-09, YFZ450 04-09 & 12-13.
Country USA
Brand Boyesen
Manufacturer Boyesen
Binding Automotive
ItemPartNumber WPK-38B
Model WPK-38B
Color Black
ReleaseDate 2012-12-21
UPCs 804429506422
EANs 0804429506422

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