The 3656845M2 is a genuine OEM cylinder head gasket designed for McCormick CX, MC, and MTX series agricultural tractors. This essential engine component ensures a proper seal between the cylinder head and engine block, preventing leaks and maintaining optimal engine compression. It is also compatible with a wide range of Massey Ferguson 4200, 4300, 5400, 6200, 6400, 7400, and 8200 series tractors, serving as a direct replacement for part number 3656845M1.