Boyesen WPK-45M Supercooler Water Pump Cover and Impeller Kit - High-Performance Magnesium Upgrade for Dirt Bikes & ATVs - Perfect for Off-Road Racing and Extreme Cooling Performance

By casting a totally new water pump cover, Boisean 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. Can reduce engine temperatures by as much as ten degrees . Fits: KTM 450EXC/XC-W 2012-2016, KTM 450SX-F 2013-2015

Fits KTM 450EXC/XC-W 2012-2016, KTM 450SX-F 2013-2015

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

Can reduce engine temperatures by as much as ten degrees