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Vertex Top End Piston Kit - 1999-2022 Yamaha YZ250/ 2016-2022 YZ250X

Regular price $169.11 USD
Regular price $198.95 USD Sale price $169.11 USD
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Vertex Top End Piston Kit - 1999-2022 Yamaha YZ250/ 2016-2022 YZ250X

Most OEM manufacturers recommend on small-bore motocross engines need to have the piston and rings replaced every 25-30 hours to maintain peak performance and not damage the cylinder plating.

Vertex Pistons is the 2-Stroke Piston OEM supplier of two-stroke pistons to Husqvarna and KTM; they have an outstanding reputation for superior performance and stat of the art manufacturing processes.

Vertex’s Yamaha YZ250 Top-End piston kits are manufactured using only premium aluminum alloys utilizing a 18% silicon content for reliability and long life.


Features Vertex Performance Pistons Kit:

  • Vertex piston skirts are coated with a high-tech Molybdenum Disulfide coating. This allows for faster break-in time and increased piston life
  • Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston
  • All pistons are heat treated with a T-5 hardening and tempering cycle
  • All rings are OEM replacements
  • Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing or cam chain where applicable
  • Fits the Yamaha YZ250 1999-2022 / Yamaha YZ250X 2016-2022
  • Vertex Part number Top End A Kit - VTK22584A-2 / Top End B Kit - VTK22584B-2
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