Description
High-performance pistons are the foundation of reliable power delivery under sustained boost and RPM, and OEM units often compromise on thermal management and durability. The WSM K1100 Piston Kit delivers OEM-equivalent construction with purposeful upgrades—most notably the MOS2 coating on the skirts, which actively pulls heat away from the piston body and dissipates it through the pin bore. This means cooler running temps, reduced friction, and measurable gains in longevity and power output, all without exotic materials or excessive weight.
Built for racers and serious enthusiasts who demand precision fitment and proven reliability, this kit gives you the thermal efficiency and structural integrity needed to push your engine harder for longer.
- Bore size: +.25 mm
- Complete kit per cylinder
- Piston, rings, pin, clips included
- MOS2-coated skirts
- Heat-conducting design
- Hardened ring grooves
- Enhanced E-clip design
- Meets/exceeds OEM specs
- Additional rings available separately
- MPN: 010-821-04PK







