1、Applicable Models: Cylinder gasket top end rebuild kit is fit for ATV 300 FOURTRAX 300 1988, for ATV 300FW FOURTRAX 4X4 1989, and for ATV 300FW 4X4 2000. 2、OE Number: The part numbers of reference are 12000 HC4 000, 12100 HC4 000, please confirm whether it is consistent with the OE you need. 3、High Performance: The cylinder piston top end rebuild kit works reliably in harsh conditions, improving engine displacement and performance, increasing horsepower and torsion! 4、Strong Durability: Engine cylinder top end rebuild kit is made of high grade aluminum material, which has high strength, is not easy to be deformed, has a long service life, strong impact resistance, reduces engine vibration, and provides a smoother and more stable ride. 5、Ideal Replacement: Fine craftsmanship, this is your ideal option and replacement for your original damaged and old cylinder top end rebuild kit, perfect for you. Item Type: Cylinder Top End Rebuild Kit Material: Aluminum OE Number: 12000 HC4 000, 12100 HC4 000 Kit Includes: Cylinder, piston, rings, wrist pin, circlips, gaskets, filter Cylinder Bore: Approx. 74.00mm/2.9inFitment: For 300 2x4  4x4 FW four-wheelers 1988-2000 For ATV 300 FOURTRAX 300 1988 For ATV 300FW FOURTRAX 4X4 1988 For ATV 300 FOURTRAX 1989 For ATV 300FW FOURTRAX 4X4 1989 For ATV 300 1990 For ATV 300 1991 For ATV 300FW 1991 For ATV 300 1992 For ATV 300FW 1992 For ATV 300 1993 For ATV 300FW 1993 For ATV 300 1994 For ATV 300FW 1994 For ATV 300 1995 For ATV 300FW 4X4 1995 For ATV 300 FOURTRAX 1996 For ATV 300FW FOURTRAX 4X4 1996 For ATV 300 1997 For ATV 300FW 4X4 1997 For ATV 300 1998 For ATV 300FW 4X4 1998 For ATV 300 FOURTRAX 1999 For ATV 300FW FOURTRAX 4X4 1999 For ATV 300 2000 For ATV 300FW 4X4 2000 1 x Cylinder Top End Rebuild Kit (28pcs)