- Machined from 2618-T6 high-tensile forged aluminum
- Dome/dish features smooth flowing radii; requires no deburring or preparation
- Specifically engineered for extreme applications including professional competition
- Pro Series pistons available for select models: features include internal and external bracing, dedicated embossed forgings for weight reduction, specialized processes such as internal milling the internal struts, along with dedicated accumulator groove and forged side relief
- Includes Pins, pin fitment, lock and rings
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2002-2004 | Yamaha | Grizzly 660 YFM660F 4x4 | |
| 2005-2006 | Yamaha | Grizzly 660 YFM660FA 4x4 | |
| 2007 | Yamaha | Grizzly 660 YFM660FG 4x4 | |
| 2001-2005 | Yamaha | Raptor 660R YFM660R | |
| 2006-2007 | 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 | |