Vertex Top End Piston Kit - Yamaha YZ 125
Part number: VTK23119B
$201.95
Description
Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Specifications Cylinder Diameter: 54mm Displacement: 125cc Piston O.D.: 53.94mm Vehicle Fitment Yamaha YZ 125 (2005-2021) Yamaha YZ 125 X (2020-2022) Vertex Pistons are precision-engineered for maximum performance and durability. Each kit is manufactured to OEM specifications with premium materials for a perfect fit. Backed by Vertex's quality guarantee.
Specifications
| compression ratio | STD |
|---|---|
| cylinder diameter | 54mm |
| displacement | 125cc |
| part type | Top End Piston Kit |
| piston od | 53.94 |
| vehicle type | Dirt Bike |
Listed vehicle applications
| Year | Make | Model | Notes |
|---|---|---|---|
| 2021 | Yamaha | YZ 125 | Catalog application: 2021 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2020 | Yamaha | YZ 125 | Catalog application: 2020 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2019 | Yamaha | YZ 125 | Catalog application: 2019 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2018 | Yamaha | YZ 125 | Catalog application: 2018 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2017 | Yamaha | YZ 125 | Catalog application: 2017 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2016 | Yamaha | YZ 125 | Catalog application: 2016 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2015 | Yamaha | YZ 125 | Catalog application: 2015 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2014 | Yamaha | YZ 125 | Catalog application: 2014 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2013 | Yamaha | YZ 125 | Catalog application: 2013 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2012 | Yamaha | YZ 125 | Catalog application: 2012 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2011 | Yamaha | YZ 125 | Catalog application: 2011 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2010 | Yamaha | YZ 125 | Catalog application: 2010 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2009 | Yamaha | YZ 125 | Catalog application: 2009 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2008 | Yamaha | YZ 125 | Catalog application: 2008 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2007 | Yamaha | YZ 125 | Catalog application: 2007 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2006 | Yamaha | YZ 125 | Catalog application: 2006 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2005 | Yamaha | YZ 125 | Catalog application: 2005 Yamaha YZ 125. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2022 | Yamaha | YZ 125 X | Catalog application: 2022 Yamaha YZ 125 X. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2021 | Yamaha | YZ 125 X | Catalog application: 2021 Yamaha YZ 125 X. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
| 2020 | Yamaha | YZ 125 X | Catalog application: 2020 Yamaha YZ 125 X. Piston OD 53.94 mm; Cylinder 54mm. Top End Piston Kit. Includes (Cast Replica Piston Kit, Top End Gasket Kit, & Wrist Pin Bearing). Source: Vertex Pistons Catalog 1-21-2026. Reviewed 2026-09-23. |
Check the exact vehicle application and specifications before ordering. Ask HPE if a detail is missing.