Vertex Top End Gasket Kit Skidoo 800 ETec 09-710312These sets include the head, base, and upper end gaskets. These sets are designed for piston replacement. Gaskets and o rings for power valve rebuild also included. Vertex gaskets is an industry leader in gasket manufacturing high performance gaskets for dirtbikes, ATV, UTV, snowmobiles, and PWCs. Made in the USA, Vertex gaskets are the most complete gasket sets in the industry. Fits 2012 2018 Skidoo 800 E Tec models