- Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication
- Lightweight piston with a tight piston wall clearance for a quieter running engine
- Skirt coated for reduced friction and improved break in performance
- Ring land treatment for improved ring seal and oil control
- Double bridged forging design where noted
- Kit includes piston, rings, wrist pin and pin locks
Kit Includes:
- Piston #8942DB
- Ring Set #RIK77.00D
- Wrist Pin #WP070-SP
- Retaining Clips #CW16
NOTE: Double bridge forging. Two ring design.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2016-2018 | Yamaha | YZ250F | |
| 2017-2019 | Yamaha | YZ250FX | |