PRODUCT DETAIL Tusk produces some of the best motorcycle and ATV parts and accessories in the industry. Tusk motorcycle and ATV gasket kits are no exception. Tusk top-end gasket kits utilize top quality materials for their gaskets, O-rings, and seals. Tusk Top End Gaskets are made from the highest quality materials available. Kits come complete with head and base gaskets and other necessary gaskets and parts to rebuild the top end on your motorcycle or ATV.