Race-Driven Complete Gasket kit fits the following models: 1996 1997 1998 1999 Ski-Doo Summit 670, 1998 1999 Ski-Doo Summit X 670. Race-Driven Gasket kits are made of the highest quality material and meet or exceed OEM standards. Complete gasket kits include all necessary gaskets and seals to do a complete engine rebuild. Gaskets come as pictured. Race-Driven is committed to bringing the highest quality products to all riders at an affordable price. Customer Driven – Quality Driven – Race-Driven