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  • SuperCooler Kits


Model # WPK-44B

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Quick Overview

HEAT is killing your KTM 4-Stroke. These machines runs HARD and runs HOT – Boyesen's SuperCooler™ kit for the KTM250/350 uses a patented impeller design to protect vulnerable engine components. A 26% flow increase over stock lets you run cooler, run faster and moto longer. More flow means supercooled engine protection and maximum horsepower!

Product Description

With over 40 years in high performance engineering and manufacturing, Boyesen has produced an all-new water pump/impeller kit for the ’13 KTM250 & 11-13 KTM350 models. The Boyesen SuperCooler water pump kit is an aluminum investment cast cover and impeller combo; specifically designed to enhance the performance and durability of you engine’s 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.

  • Patented Nautilus style cast aluminum impeller
  • Increased coolant flow at all RPM ranges
  • Reduces cavitation and hydraulic friction
  • Seamless Hydrodynamic design
  • High capacity inlets
  • Available in 3 powder coated colors; Black, Orange or Magnesium
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