Each GM OE gasket kit from ACDelco is backed by a 12-month/unlimited-miles warranty. ACDelco has introduced nine General Motors Original Equipment (OE) engine component gasket kits to the aftermarket. Four new intake manifold gasket kits and five new head gasket kits cover GM engines from the 1997-2009 model years. Every ACDelco GM OE gasket kit includes installation instructions validated by GM’s engineering team and manifold bolts when required. Any included bolts also have rubber seals for enhanced durability and easier installation. The company says the kits include all of the OE components needed for a cylinder head gasket or intake manifold job. ACDelco is the original equipment parts brand for Chevrolet, Buick, GMC and Cadillac, as well as provider of aftermarket parts for most other makes and models.