- 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 #8784DA
- Ring Set #RIK95.00
- Wrist Pin #WP029-SP
- Retaining Clips #CW20
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2006-2009 | Yamaha | YFZ450 | |
| 2009-2011 | Yamaha | YFZ450R | |
| 2009-2011 | Yamaha | YFZ450RSE Special Edition | |
| 2007 | Yamaha | YFZ450SE Special Edition | |
| 2008 | Yamaha | YFZ450SP Special Edition | |
| 2006-2007 | Yamaha | YFZ450V Bill Balance Edition | |
| 2010-2011 | Yamaha | YFZ450X | |
| 2010 | Yamaha | YFZ450X Bill Balance Edition | |
| 2011 | Yamaha | YFZ450XSE Special Edition | |
| 2006-2013 | Yamaha | YZ450F | |