Wiseco 4418M07500 Kawasaki KSF250 Mojave 89-04 11.51 2953XC Piston KitWiseco 4418M07500 Kawasaki KSF250 Mojave 89 04 11. 51 2953XC Piston Kit The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high performance 4 strokes. Today, Wisecos forged 4 stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding,