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Wiseco High Performance ArmorGlide Piston Kit Yamaha YZ450F / WR450F 2003-2006

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This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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Wiseco High Performance ArmorGlide Piston Kit Yamaha YZ450F / WR450F

Wiseco's High Performance ArmorGlide Piston Kits are offered for nearly every popular application and contain everything you need to complete your rebuild the right way, the first time.


  • ArmorGlide skirt coating provides reduced friction and noise to contribute to increased horsepower
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy construction
  • High performance ring set and alloy pin included with each piston kit for extended life and sustained power
  • Maximum compression and oil control
  • Improved combustion flow
  • Horizontal slot pin oiling for reduced friction
  • Pressure seal groove for maximum ring seal


  • Piston
  • Rings
  • Wrist pin
  • Clips
  • Top end gasket kit
  • Needle bearing (when applicable)

Note: Images are for reference only, actual kit will vary per make and model.

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Please review this product's fitment notes & exceptions prior to purchase: Add to Cart

This product is vehicle specific. Click here to select your vehicle to ensure fitment.

Fitment Notes & Exceptions
  • Always inspect and measure your cylinder before ordering
  • Any kit selection other than stock bore size will require cylinder boring and Nikasil plating or a new cylinder sleeve
  • Premium pump fuel required for high-compression ratios up to 13.5:1
  • Increased octane (race fuel) is required for compression ratios over 13.5:1

This Product Fits:

WR450F 2003, 2004, 2005, 2006
YZ450F 2003, 2004, 2005

This item is also available for 39 other models:

CRF250R 2010-2013
CRF250R 2014-2015
CRF250R 2016-2017
CRF250R 2004-2007
CRF250X 2004-2017
CRF450R 2002-2008
CRF450R 2013-2016
FC450 2014-2015
FE350 2014-2016
FE450 2014-2015
250 SX-F 2006-2012
250 XC-F 2007-2012
250 XCF-W 2007-2012
350 EXC-F 2012-2016
350 XC-F 2012-2016
450 EXC 2003-2007
450 MXC 2003-2005
450 SX-F 2013-2015
450 XC-W 2007
KLX450R 2007-2010
KX250F 2006
KX250F 2007-2008
KX250F 2011-2014
KX250F 2017-2019
KX450F 2009-2012
KX450F 2006-2008
DR-Z400 2000-2008
DR-Z400E 2000-2012
DR-Z400S 2000-2024
RMZ250 2010-2018
RMZ450 2005-2007
WR250F 2005-2013
WR450F 2007-2015
YZ250F 2001-2004
YZ250F 2008-2011
YZ250F 2012-2013
YZ250F 2005-2007
YZ450F 2018-2019
YZ450F 2006-2009
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style 12.5:1/Stock Compression / 95.0/Stock Bore Item # 1210271 Store SKU Manufacturer Product # PK1357 Availability In Stock: Ships within 24 hours
Product Style 12.5:1/Stock Compression / 97.0 Item # 1210272 Store SKU Manufacturer Product # PK1358 Availability Only 1 Left: Ships within 24 hours
Product Style 95.0/Stock Bore / 13:1/High-Compression Item # 1210274 Store SKU Manufacturer Product # PK1361 Availability Out of Stock
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