K&S Technologies K&S 75-4002 Water Pump Repair Kit For: Yamaha YZ-450 F (04-05), Yamaha YZ-450 F (03), Yamaha WR-450 F (04-06), Yamaha WR-450 F (03) Water pump repair kits include all gaskets, washers and seals for a total water pump rebuild Direct OEM replacement gaskets and seals are made with high quality materials imported from Japan Silicone line coated where applicable Convenience of everything you need in one package