Manufactured by Namura 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 .040 over bore size 67.00mm Piston is 66.92mm 6.6 1 standard compression ratio Made in Taiwan Fits 1988 Yamaha Blaster 200 YFS200 1989 Yamaha Blaster 200 YFS200 1990 Yamaha Blaster 200 YFS200 1991 Yamaha Blaster 200 YFS200 1992 Yamaha Blaster 200 YFS200 1993 Yamaha Blaster 200 YFS200 1994 Yamaha Blaster 200 YFS200 1995 Yamaha Blaster 200 YFS200 1996 Yamaha Blaster 200 YFS200 1997 Yamaha Blaster 200 YFS200 1998 Yamaha Blaster 200 YFS200 1999 Yamaha Blaster 200 YFS200 2000 Yamaha Blaster 200 YFS200 2001 Yamaha Blaster 200 YFS200 2002 Yamaha Blaster 200 YFS200 2003 Yamaha Blaster 200 YFS200 2004 Yamaha Blaster 200 YFS200 2005 Yamaha Blaster 200 YFS200 2006 Yamaha Blaster 200 YFS200