Manufactured by Kit includes piston, rings, pin, clips, wrist pin bearing top end gasket kit (you get exactly what is pictured) Cast piston has super-high silicone content for additional strength Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life Piston dome is anodized for superior heat resistance and longer lifespan gaskets use performance materials to increase durability and provide greater reliability Includes all gaskets pictured to rebuild top end Kit is for .040 over bore size – 75.50mm Piston is 75.47mm Compatible with Polaris models below: 1994 300 2×4 1994 300 4×4 1994 300 6×6 1995 300 2×4 1995 300 4×4 1996 Xplorer 300 4×4 1996 Xpress 300 1997 Xplorer 300 4×4 1997 Xpress 300 1998 Xplorer 300 4×4 1998 Xpress 300 1999 Xplorer 300 4×4 1999 Xpress 300