Dennis Kirk Inc.
Search Within
Ride Search
Top 3 Product Matches

Magnesium SuperCooler Kit - WPK-45M

  • Part #:
  • Mfg Part #:
  • OEM/Ref#:
1 / 3

Magnesium SuperCooler Kit - WPK-45M

  • Part #:
  • Mfg Part #:
  • OEM/Ref#:
MSRP: $194.95

Price: $175.46 10% off!
Make sure this fits your ride
Ships Free
In Stock - 1 on Hand

Boyesen Magnesium SuperCooler Kit - WPK-45M
Heat is killing your KTM 4-stroke. These machines runs HARD and runs HOT; Boyesens SuperCooler™ kit for the KTM 250/350 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!

With over 40 years in high performance engineering and manufacturing, Boyesen has produced an all-new water pump/impeller kit for the 12-14 based KTM450 and 500 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 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.
  • Patented Nautilus style cast aluminum impeller
  • Increased coolant flow at all RPM ranges
  • Reduces cavitation and hydraulic friction
  • Seamless Hydrodynamic design
  • High capacity inlets

    Included Items:
    (1) Magnesium cast aluminum water pump cover
    (1) Silver cast aluminum impeller
Part #: 4901149
Mfg #: WPK-45M
Type Water Pump
Units Kit
Weight 0.45 lbs
Alternate/OEM Part Number(s):
UPC Code:
Resources & Manuals
Fitment for Boyesen Magnesium SuperCooler Kit - WPK-45M

Part 4901149 fits the following machines

  • 450 EXC 2012
  • 450 SMR 2012-2013
  • 450 SX-F 2012-2015
  • 450 SX-F Factory Edition 2012-2013
  • 450 XC-F 2013-2015
  • 450 XC-W 2012-2016
  • 500 EXC 2012-2016
  • 500 EXC Six Days 2016
  • 500 XC-W 2012-2016


Reviews & Questions
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!
There are no reviews for this item. Write Review