Wiseco Forged 77.00mm Piston & Top End Gasket Kit (PK1401)
- 12.5:1 Compression Ratio
- Standard Bore
- Non-Coated
- Complete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engine
- Designed and built for each specific 4-stroke powersports engine
- Improved tensile strength of forged material optimizes strength and service life
- Engineered, forged, and machined in the USA
- Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC)
- Wiseco pistons can be fitted only with Wiseco rings
- Cylinder sleeves must be purchased separately.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2005-2009 | Yamaha | WR250F | |
| 2011 | Yamaha | WR250F | |
| 2013 | Yamaha | WR250F | |
| 2005-2007 | Yamaha | YZ250F | |