The McCormick GKW39038AB is a genuine OEM cylinder head gasket designed for a wide range of McCormick agricultural tractors. This essential engine component ensures a tight seal between the cylinder head and engine block, preventing leaks and maintaining optimal engine compression. It is compatible with McCormick CX, MC, C, T, and V series models, as well as various Landini, Massey Ferguson, and Perkins applications. Replaces OEM part numbers 3540026M1 and 3681E047.