EK-HG12 Elliott MPSG-12 head gasket kit, Includes 2 complete head gasket kits and all shop bulletins.EK HG12 Head gasket kit, This is the improved head gasket kit, this kit fixes past problems with blown head gaskets, a steel sealing ring has been added between the head and the top of the block surface making a better seal in the combustion chamber. In the past the Elliott MPSG was notorious for blown head gaskets especially on natural gas configuration. This kit includes kits for both cylinders and all shop bullitons for this generator. With every 2