Description
When you’re pushing a YZ490 or IT490 to its limits—whether on the trail or at the track—piston integrity becomes non-negotiable. The Wiseco 478M08700 piston kit delivers the durability and precision your engine demands, featuring a high-silicon alloy construction that withstands extreme combustion pressures while maintaining the responsiveness you need for competitive performance. This complete kit eliminates guesswork with factory-matched rings and circlips, so you can focus on riding rather than worrying about component compatibility.
- High-silicon alloy construction
- 1982–1984 YZ490, IT490 fitment
- Includes rings, circlips
- Precision-engineered tolerances
- Trail and racing applications
- Complete bolt-on installation
- Wiseco professional-grade quality
