Manufactured by Kit Includes piston, rings, pin, clips (you get exactly what is pictured) Cast piston has super-high silicone content for additional strength Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life Piston dome is anodized for superior heat resistance and longer lifespan Kit is for standard bore size – 66.40mm Size A piston is 66.35mm Compatible with Kawasaki models below: 1992 – 2004 KX250