Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400
Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400

Wiseco 54.00 mm Pro-Lite Piston Kit, Model 2126CS, Part 845M05400

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  • $143.95
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The Pro-Lite series is Wiseco's staple forged 2-stroke piston, offering great value for reliable all-purpose riding. These pistons are designed for both track and trail, providing refreshed performance with every ride. Pro-Lite pistons feature optimized forging for strength and extra lightning operations for enhanced throttle response. This all-purpose piston is perfect for riders seeking a balance of performance and reliability. 54.00 mm Bore
  • Dedicated forging design for strength-to-weight optimization
  • Extra lightening operations for enhanced throttle response
  • High-quality ring(s), wrist pin(s), and circlips included
  • Engineered, forged, and machined in the USA in Mentor, OH
  • Refreshed performance from the track to the trail
  • Designed for all-purpose 2-stroke riding
  • Great value for reliable fun factor

The Wiseco Pro-Lite forged 2-stroke piston kit is designed for reliable all-purpose riding, offering refreshed performance from the track to the trail. This piston features a dedicated forging design optimized for strength-to-weight balance, along with extra lightening operations intended to enhance throttle response.

This 54.00 mm bore piston kit fits 2005–2014 Yamaha YZ125 models. The manufacturer part number is 845M05400, and the vendor model is 2126CS. High-quality rings, wrist pins, and circlips are included. The piston is engineered, forged, and machined in the USA in Mentor, Ohio.

Wiseco Pro-Lite pistons provide a practical balance of performance, durability, and value for riders seeking dependable 2-stroke engine service. Verify the listed vehicle year and model before ordering to confirm fitment.

Features:

  • Brand: Wiseco
  • Model: 2126CS
  • Manufacturer and vendor part number: 845M05400
  • Bore size: 54.00 mm
  • Application: 2005–2014 Yamaha YZ125
  • Dedicated forging design optimized for strength-to-weight balance
  • Extra lightening operations intended to enhance throttle response
  • Includes high-quality rings, wrist pins, and circlips
  • Engineered, forged, and machined in the USA in Mentor, Ohio
  • Designed for all-purpose 2-stroke riding



Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1
Fitment:
2005 Yamaha YZ125 Base
2006 Yamaha YZ125 Base
2007 Yamaha YZ125 Base
2008 Yamaha YZ125 Base
2009 Yamaha YZ125 Base
2010 Yamaha YZ125 Base
2011 Yamaha YZ125 Base
2012 Yamaha YZ125 Base
2013 Yamaha YZ125 Base
2014 Yamaha YZ125 Base
2015 Yamaha YZ125 Base
2016 Yamaha YZ125 Base
2017 Yamaha YZ125 Base
2018 Yamaha YZ125 Base
2019 Yamaha YZ125 Base
2020 Yamaha YZ125 Base
2020 Yamaha YZ125X Base
2021 Yamaha YZ125 Base
2021 Yamaha YZ125X Base
2022 Yamaha YZ125X Base