- The piston is heat-treated with a T-5 hardening and tempering cycle
- The piston skirt is coated with high-tech Molybdenum Disulphite to allow faster break in time and increased piston life
- Cast piston kit is gravity-cast aluminum alloy (not forged) with 18% silicone content
- Replica piston and all rings are OEM replacements
- Top end kit includes piston, rings, pins, circlips, top end gaskets and cam chain
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2002-2004 | Yamaha | Grizzly 660 YFM660F 4x4 | |
| 2005-2006 | Yamaha | Grizzly 660 YFM660FA 4x4 | |
| 2008 | Yamaha | Grizzly 660 YFM660FA 4x4 | |
| 2007 | Yamaha | Grizzly 660 YFM660FG 4x4 | |
| 2004-2007 | Yamaha | Rhino 660 YXR660FA 4x4 | |
| 2006-2007 | Yamaha | Rhino 660 YXR660FAEX 4x4 Exploring Edition | |
| 2006 | Yamaha | Rhino 660 YXR660FASE 4x4 Special Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FDU 4x4 Ducks Unlimited Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FSE 4x4 Special Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FSP 4x4 Sport Edition | |