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Wiseco YZ250 1999-2024 Racer Elite Piston Kit 66.40mm RE902M06640

Part Number: 09105123
WISECO
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SKU:
09105123
MPN:
RE902M06640
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.70 LBS
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$249.95

Ships from Manufacture | Call to Order (231) 767-5055

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Description

The piston is the powerhouse of your 2-stroke engine—it's where combustion converts to acceleration. A worn or undersized piston kills compression, throttle response, and overall performance. The Wiseco RE902M06640 Racer Elite Kit restores that lost power while delivering the durability needed for consistent, high-rpm riding across seasons.

Built for the Yamaha YZ250 and YZ250X, this piston kit combines Wiseco's proven engineering with materials and coatings specifically designed to handle the demands of modern 2-stroke competition and trail riding. You get faster acceleration, sharper power delivery, and a piston that won't quit mid-season.

  • Bore Diameter: 66.40mm
  • Fitment: YZ250 (1999–2024), YZ250X (2020–2024)
  • Material: High-performance alloy
  • ArmorPlating™: Crown protection included
  • Skirt Coating: Precision friction-reduced
  • Ring Design: Enhanced sealing geometry
  • Weight: Lightweight optimized
  • Installation: Direct bolt-on replacement
  • MPN: RE902M06640
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Specs

BORE - OVERSIZE METRIC:
STANDARD
PISTON MATERIAL:
FORGED
BORE - OVERSIZE:
STANDARD
ENGINE TYPE:
2-STROKE
PRODUCT NAME:
PISTON KIT
SKIRT COATING:
ARMORFIT™
PISTON MATERIAL:
2000 SERIES ALLOY
RIDING STYLE:
OFF-ROAD
TYPE:
RACER ELITE
UNITS:
KIT
BORE SIZE METRIC:
66.40 MM
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Fitment

Fitment for Wiseco YZ250 1999-2024 Racer Elite Piston Kit 66.40mm RE902M06640

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