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Engine

$369.95
  TRX400EX Displacement - 440cc Bore size - 4.00" Compression ratio - 12.5:1 Cylinder sleeving required Kit Includes: Piston,...

$239.00 $179.25
Wiseco offers forged pistons that offer better performance than OEM at a reasonable price. Extensive engineering goes into each Wiseco ATV Piston to provide...


$29.95
In line temperature reducer increases cooling efficiency of any water cooled all terrain vehicle. The Pro Design Super Coolers Reduces cooling temperatures...
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$499.00
Oversized NASCAR styled radiator for your ATV o No other radiator like it on the planet! o Maintains cooler operating temperatures under the...

$329.00 $289.52
Eliminates excessive clutch slipping. Transfer all of your horsepower to the rear tires. Increase the quickness of your ATV....

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CP Piston comes complete with rings, circlips , and wristpin. Made in the USA from the highest quality materials and with world leading technology...

$88.89 $80.00
The Wiseco cam chain is made from the highest quality select steel alloys that are light, yet provide maximum strength.

$119.00 $107.10
    * Magnum/YBN cam chains are made to meet or exceed OEM standards. * ISO 9001 certified.

$528.00 $475.20
Wiseco Valve kit includes exhaust valves, intake valves , and center valves were applicable. The LTR450 and the YFZ450 come in Titanium. The 400ex, kfx400, ltz400 come in stainless steel.

$251.00 $213.35

JE has a history of manufacturing the highest quality pistons and components that a professional engine builders, race teams, and high performance enthusiasts alike trust and rely on.


$0.00
With over 50 years of experience, JE pistons is the leader in high performance forged pistons. JE Pistons have built a reputation that the competition can...