The McCormick 3059999R3 radiator cap is a genuine OEM replacement part designed to maintain proper cooling system pressure for McCormick CX, MC, and MTX series tractors. This essential component ensures optimal engine temperature regulation and prevents coolant loss. It is also compatible with a wide range of Case IH and New Holland agricultural machinery, including various CX, MX, Puma, Maxxum, Magnum, T, TM, TS, and TL series models. Measuring approximately 76.2 mm in length, 76.2 mm in width, and 50.8 mm in height, and weighing 0.091 kg, this cap provides a secure and reliable seal for your cooling system.