Product description
The Prox Piston Kit For Yamaha YZ125 2005-2021 53.96 mm is part of the latest collection from Prox.
Features:
- Manufactured in Japan and designed to be OEM replacement
- Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances
- Kit includes piston, ring kit, wrist pin, and circlips
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 54.00 mm
- Compression Ratio Imperial: Standard
- Compression Ratio: Standard
- Displacement: 125 cc
- Engine Type: 2-Stroke
- Piston Material: Aluminum Alloy| Cast
- Piston Size Metric: 53.96 mm
- Piston Size: 53.96 mm
- Product Name: Piston Kit
- Skirt Coating: Moly Coated
To fit:
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
Manufacturer part number: 01.2225.B
View all Prox. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Prox Piston Kit For Yamaha YZ125 2005-2021 53.96 mm
To fit:
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models

ProX is a Dutch brand specialising in high-quality replacement parts for motorcycles, motocross, ATVs, and other powersports vehicles. Their range includes pistons, connecting rods, clutch components, bearings, and valves, all manufactured to OEM standards. ProX parts are trusted worldwide for durability, precision, and performance, making them a go-to choice for riders.
Product description
The Prox Piston Kit For Yamaha YZ125 2005-2021 53.96 mm is part of the latest collection from Prox.
Features:
- Manufactured in Japan and designed to be OEM replacement
- Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances
- Kit includes piston, ring kit, wrist pin, and circlips
Specifications:
- Bore - Oversize Metric: Standard
- Bore - Oversize: Standard
- Bore Size: 54.00 mm
- Compression Ratio Imperial: Standard
- Compression Ratio: Standard
- Displacement: 125 cc
- Engine Type: 2-Stroke
- Piston Material: Aluminum Alloy| Cast
- Piston Size Metric: 53.96 mm
- Piston Size: 53.96 mm
- Product Name: Piston Kit
- Skirt Coating: Moly Coated
To fit:
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models
Manufacturer part number: 01.2225.B
View all Prox. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Prox Piston Kit For Yamaha YZ125 2005-2021 53.96 mm
To fit:
- YAMAHA YZ 125 X 2020 American Models
- YAMAHA YZ 125 X 2021 American Models
- YAMAHA YZ 125 X 2022 American Models
- YAMAHA YZ 125 2005 All Models
- YAMAHA YZ 125 2006 American Models
- YAMAHA YZ 125 2006 European Models
- YAMAHA YZ 125 2007 American Models
- YAMAHA YZ 125 2007 European Models
- YAMAHA YZ 125 2008 American Models
- YAMAHA YZ 125 2008 European Models
- YAMAHA YZ 125 2009 American Models
- YAMAHA YZ 125 2009 European Models
- YAMAHA YZ 125 2010 American Models
- YAMAHA YZ 125 2010 European Models
- YAMAHA YZ 125 2011 American Models
- YAMAHA YZ 125 2011 European Models
- YAMAHA YZ 125 2012 American Models
- YAMAHA YZ 125 2012 European Models
- YAMAHA YZ 125 2013 American Models
- YAMAHA YZ 125 2013 European Models
- YAMAHA YZ 125 2014 American Models
- YAMAHA YZ 125 2014 European Models
- YAMAHA YZ 125 2015 American Models
- YAMAHA YZ 125 2015 European Models
- YAMAHA YZ 125 2016 American Models
- YAMAHA YZ 125 2016 European Models
- YAMAHA YZ 125 2017 American Models
- YAMAHA YZ 125 2017 European Models
- YAMAHA YZ 125 2018 European Models
- YAMAHA YZ 125 2019 All Models
- YAMAHA YZ 125 2020 All Models
- YAMAHA YZ 125 2021 All Models

ProX is a Dutch brand specialising in high-quality replacement parts for motorcycles, motocross, ATVs, and other powersports vehicles. Their range includes pistons, connecting rods, clutch components, bearings, and valves, all manufactured to OEM standards. ProX parts are trusted worldwide for durability, precision, and performance, making them a go-to choice for riders.































