Manufactured by Namura Kit includes piston, rings, pin, clips bearing 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 64.00mm Piston is 63.95mm This kit is OEM style, but has 20% thicker skirts than stock Made in Taiwan Fits 1987 Yamaha Banshee 350 YFZ350 1988 Yamaha Banshee 350 YFZ350 1989 Yamaha Banshee 350 YFZ350 1990 Yamaha Banshee 350 YFZ350 1991 Yamaha Banshee 350 YFZ350 1992 Yamaha Banshee 350 YFZ350 1993 Yamaha Banshee 350 YFZ350 1994 Yamaha Banshee 350 YFZ350 1995 Yamaha Banshee 350 YFZ350 1996 Yamaha Banshee 350 YFZ350 1997 Yamaha Banshee 350 YFZ350 1998 Yamaha Banshee 350 YFZ350 1999 Yamaha Banshee 350 YFZ350 2000 Yamaha Banshee 350 YFZ350 2001 Yamaha Banshee 350 YFZ350 2002 Yamaha Banshee 350 YFZ350 2003 Yamaha Banshee 350 YFZ350 2004 Yamaha Banshee 350 YFZ350 2005 Yamaha Banshee 350 YFZ350 2006 Yamaha Banshee 350 YFZ350 *** 2 Pistons are required for this machine ***