High Performance Gasket set for Honda TRX400EX TRX400 400EX Top and Bottom end gaskets Contains all necessary gaskets and o-rings to rebuild your motor. (Oil seals not included) Made with top quality materials for maximum durability and leak prevention. Fits 1999-2004 Honda TRX 400EX Single layer metal head gasket. Kits are in stock and usually ships same day if ordered before 12pm EST