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 big bore size 80.00mm Piston is 79.96mm Made in Taiwan Fits 1993 Honda TRX300EX Sportrax Big Bore 330cc 1994 Honda TRX300EX Sportrax Big Bore 330cc 1995 Honda TRX300EX Sportrax Big Bore 330cc 1996 Honda TRX300EX Sportrax Big Bore 330cc 1997 Honda TRX300EX Sportrax Big Bore 330cc 1998 Honda TRX300EX Sportrax Big Bore 330cc 1999 Honda TRX300EX Sportrax Big Bore 330cc 2000 Honda TRX300EX Sportrax Big Bore 330cc 2001 Honda TRX300EX Sportrax Big Bore 330cc 2002 Honda TRX300EX Sportrax Big Bore 330cc 2003 Honda TRX300EX Sportrax Big Bore 330cc 2004 Honda TRX300EX Sportrax Big Bore 330cc 2005 Honda TRX300EX Sportrax Big Bore 330cc 2006 Honda TRX300EX Sportrax Big Bore 330cc 2007 Honda TRX300EX Sportrax Big Bore 330cc 2008 Honda TRX300EX Sportrax Big Bore 330cc 2009 Honda TRX300X Sportrax Big Bore 330cc