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Wiseco Top End Kit Pro-Lite PK1571 - 54.00 mm - Yamaha YZ125 05-21

Regular price $146.53 USD
Regular price $185.48 USD Sale price $146.53 USD
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Wiseco Top End Kit Pro-Lite 54.00/Std Yamaha YZ125 2005-2021

Wiseco Forged Piston have been setting the performance standards for motocross 2-stroke engines for years. Now Wiseco offers a great performance top end kit for your Yamaha YZ125. Wiseco give you all you need to perform your top end maintenance. What’s in the kit a performance Forged Pro-Lite piston, rings, wrist pin, top end gasket kit, c-clips and wrist pin bearing.

Each Pro-Lite forged piston is manufactured in the USA in Wiseco own plants. The 2-stroke Pro-Light piston is them CNC machined for optimal shape and profile to ensure peak performance and durability.

Specifications - Top end Kit PK1571:

  • 2126CS - 54.00 mm Ring
  • 845M05400 - Yamaha YZ125 '05-19 ProLite 2126CS
  • B1001 - Top End Bearing 15 x 19 x 17.3mm
  • CW15 - 15mm Round Wire Locks - Set of Two
  • Ring - Set
  • S668 – Piston Pin 15 x 47mm ID Non Chromed TW
  • W6331 – Top End Gasket Kit Yamaha YZ125 '05-20


  • Each Pro-Light piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Superbike, and more
  • Wiseco piston kits feature a complete top end gasket kit that gives you everything you need to complete your rebuild from premium materials.
  • Forged pistons offer superior strength to weight ratio utilizing aerospace alloy.
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
  • Part number - PK1571

Click to see all the other performance parts for your Yamaha YZ125

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