Description
When you’re pushing your YFZ450 to its limits, factory pistons become the weak link. The Wiseco 864M04500 piston kit delivers the precision engineering and durability you need to run higher boost levels, extended RPM ranges, or aggressive tuning without sacrificing reliability. Built to Wiseco’s exacting standards, this kit restores your engine to peak performance while maintaining the thermal stability that keeps your engine in the fight.
This is a bolt-on upgrade that requires basic mechanical competency—no custom fabrication needed. Just ensure you source a fresh gasket kit separately to complete a proper top-end refresh.
- Fits: 2004-2006 Yamaha YFZ450
- MPN: 864M04500
- Type: Standard displacement piston kit
- Material: High-quality forged aluminum
- Design: Precision-engineered for tight tolerances
- Friction reduction: Optimized ring geometry
- Heat dissipation: Enhanced dome technology
- Installation: Bolt-on, standard tools
- Gasket kit: Sold separately
- Application: High-performance and racing use
