The VERTEX Piston Kit is a 57.95 mm big bore piston kit for select Yamaha YZ125 and YZ125X models. Manufacturer part number 23335A and distributor part number 09100967 identify this cast piston kit for the listed vehicle applications.
The piston is gravity-cast from aluminum alloy with 18% silicone content and receives a T-5 hardening and tempering cycle for heat treatment. Its skirt features a molybdenum disulfide coating designed to support faster break-in time and increased piston life. The big bore design increases engine displacement, torque, and peak horsepower.
The kit includes the piston, rings, wrist pin, and circlips. Fitment includes the 2018 Yamaha YZ125, 2021 Yamaha YZ125X, 2006 Yamaha YZ125, 2012 Yamaha YZ125, 2013 Yamaha YZ125, 2016 Yamaha YZ125, 2017 Yamaha YZ125, 2009 Yamaha YZ125, 2011 Yamaha YZ125, and 2015 Yamaha YZ125.
Features:
- Brand: VERTEX
- Product: Piston Kit
- Size: 57.95 mm
- Manufacturer Part Number: 23335A
- Distributor Part Number: 09100967
- Construction: Gravity-cast aluminum alloy with 18% silicone content
- Heat Treatment: T-5 hardening and tempering cycle
- Piston Skirt Coating: Molybdenum disulfide coating
- Performance Design: Big bore piston increases engine displacement, torque, and peak horsepower
- Kit Contents: Piston, rings, wrist pin, and circlips
- Fitment: 2018 Yamaha YZ125; 2021 Yamaha YZ125X; 2006, 2009, 2011-2013, and 2015-2017 Yamaha YZ125
Fitment:
2005 Yamaha YZ125
2006 Yamaha YZ125
2007 Yamaha YZ125
2008 Yamaha YZ125
2009 Yamaha YZ125
2010 Yamaha YZ125
2011 Yamaha YZ125
2012 Yamaha YZ125
2013 Yamaha YZ125
2014 Yamaha YZ125
2015 Yamaha YZ125
2016 Yamaha YZ125
2017 Yamaha YZ125
2018 Yamaha YZ125
2019 Yamaha YZ125
2020 Yamaha YZ125
2020 Yamaha YZ125X
2021 Yamaha YZ125
2021 Yamaha YZ125X
2022 Yamaha YZ125X