Wiseco Piston Kit: YZ125 90-1992


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Wiseco’s legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2-stroke pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on.

  • Engineered, forged, and machined in the USA in Mentor, OH
  • Designed and built for each specific 2-stroke powersports engine
  • Improved tensile strength of forged material optimizes strength and service life
  • Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
  • Includes high-quality piston ring(s), wrist pin(s), and circlips

Additional information


YZ125 90-1992

Select Bore Size:

594M05600 (Std), 594M05650, 594M05700


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Make Model Year
Yamaha YZ125 1990 - 1992
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