2H5079 Gasket Kit-V Grinding Fits CaterpillarOne New Aftermarket Replacement Valve Grinding Gasket Kit Fits Caterpillar (Fits CAT) Engines This aftermarket replacement valve grinding gasket kit (2H5079) provides the sealing components needed during cylinder head service and valve grinding operations on Fits Caterpillar (Fits CAT) engines. Used when resurfacing or lapping valves and valve seats, this kit supplies the gaskets required to properly reseal the cylinder head assembly after grinding