The Athena Piston Kit BB Cast Lite is engineered for compatible Yamaha YZ125 two-stroke motorcycles from 2005 through 2014. Manufacturer part number S4C05800003A, this cast piston kit provides a direct-fit replacement solution for riders and technicians servicing the top end of the engine. The lightweight piston design supports responsive engine performance while maintaining the durability required for motocross and off-road use.
Designed specifically for the Yamaha YZ125 platform, the Athena Piston Kit BB Cast Lite is suitable for rebuilding or refreshing the engine’s piston assembly during scheduled maintenance or repair. Its application-specific construction helps ensure proper compatibility with the original cylinder and related engine components. Always verify cylinder condition, piston clearance, and installation requirements before assembly.
Fitment: 2005-2014 Yamaha YZ125
Brand: Athena
Manufacturer Part Number: S4C05800003A
Vendor Part Number: 68-4936A
Features:
- Application-specific piston kit for Yamaha YZ125 two-stroke motorcycles
- Cast Lite piston design supports reduced reciprocating weight and responsive performance
- Direct-fit replacement for compatible 2005-2014 Yamaha YZ125 models
- Manufactured by Athena for dependable engine service and rebuild applications
- Includes manufacturer part number S4C05800003A and vendor part number 68-4936A
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