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ProX Valve & Spring Kit

Item: 347613

$119.58 – $182.66

Select Your Vehicle - Fitment Guaranteed

ProX Valve & Spring Kit


ProX Steel Exhaust Valve and Spring Kits are offered as an alternative where the OEM application uses Titanium Valves. Titanium is a very exotic material that requires a strict installing procedure to make it work well. The OEM Titanium valve quality in general is rather poor while high-end titanium valves are very expensive. Titanium valves need to be replaced at a regular base, resulting in many expensive rebuilds.

ProX has now developed Steel Exhaust Valve and Spring Kits, containing a set of steel exhaust valves plus a set of specially designed stronger valve springs. The ProX kit replaces the OEM valves and valve springs and can be installed using the OEM retainers, bases and valve seats. The steel valves offer increased durability and easily extends 3 times the lifespan of the OEM Titanium valves. Due to the extra weight of the steel a heavier valve spring must be used!

Features

  • Steel valves for increased durability and less wear under extreme conditions.
  • Nitrided valves offer high micro hardness while surface finish reduces friction between stem and guide.
  • Special stronger valve springs deal with the extra weight of the steel valves.
  • Spring are made from premium chrome vanadium steel for higher performance and durability under high RPM.
  • Fully rebuildable with OEM retainers, bases and seals without the need of any further engine modifications.
  • Comes as complete package for quick, easy and cost efficient replacement.
Specification Details
Country of Origin Varies (make selection above)
Material Steel
Position Varies (make selection above)
Valve Position Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Honda
  • CRF250R 4-Stroke 2004-2017
  • CRF250X 4-Stroke 2004-2009
  • CRF450R 2002-2016
  • CRF450X 2005-2009, 2012-2016
Husaberg
  • FE 250 2014
Husqvarna
  • FC 250 2014-2015
  • FC 350 2014-2015
  • FE 250 2014-2017
  • FE 350 2014-2016
KTM
  • 250 EXC-F 2015
  • 250 SX-F 2005-2015
  • 350 EXC-F 2012-2016
  • 350 SX-F 2013-2015
Kawasaki
  • KFX450R 2008-2011
  • KX250F 4-Stroke 2004-2016
  • KX450F 2006-2018
Suzuki
  • DR-Z400SM 2005-2009, 2013-2020
  • LT-R450 QuadRacer 450 2006-2009
  • RM-Z250 2004-2022
  • RM-Z450 2005-2022
  • RMX450Z 2010-2011, 2017-2019
Yamaha
  • WR250F 2001-2013, 2015-2019
  • WR450F 2003-2018
  • YFZ450R ATV 2009-2021
  • YZ250F 4-Stroke 2001-2018
  • YZ250FX 4-Stroke 2015-2018
  • YZ450F 2003-2017
  • YZ450FX 2016-2020

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