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Wiseco Racer Elite Piston Kit Yamaha YZ250 / YZ250X 1999-2021

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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 Racer Elite Piston Kit Yamaha YZ250 / YZ250X


  • Advanced forged 2-stroke piston designed for premium performance and durability
  • 2000 Series alloy provides excellent strength in extreme conditions
  • ArmorPlating™ for protection from harmful detonation and improved ring seal
  • ArmorFit™ skirt coating for perfect fit and conformability to the cylinder bore
  • Dedicating forging for greater strength and weight reduction
  • Premium-quality rings enhance sealing for each application
  • Superfinish piston pin reduces friction and smooths operation
  • Developed with more than 75 years as the industry performance leader


  • Piston
  • Rings
  • Wrist pin
  • Circlips

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 bike 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

This Product Fits:

YZ250 1999-2021
YZ250X 2016, 2017, 2018, 2019, 2020

This item is also available for 37 other models:

CR125R 1995-2003
CR125R 2004-2007
CR250R 2002-2004
CR250R 2005-2007
CR85R 2003-2007
TC125 2014-2020
TC250 2014-2020
TC65 2017-2019
TC85 17/14 2014-2020
TC85 19/16 2014-2020
TE150 2017-2019
TE250 2014-2018
TE250i 2018-2019
125 SX 2002-2020
150 SX 2009-2019
150 XC-W 2017-2019
250 SX 2003-2019
250 XC-W 2018
250 XC-W TPI 2018-2019
65 SX 2009-2019
65 XC 2009
85 SX (17/14) 2003-2020
85 SX (19/16) 2003-2020
KX100 1995-2021
KX125 2001-2005
KX250 1993-2001
KX250 2002-2004
KX250 2005-2006
KX65 2000-2019
KX85 2014-2020
RM125 2004-2006
RM250 2003-2008
RM65 2003-2005
RM85 2002-2022
YZ125 2005-2021
YZ125X 2022
YZ85 2002-2021
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style 66.4/Stock Bore Item # 10007428 Store SKU Manufacturer Product # RE902M06640 Availability Out of Stock
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