The McCormick 3105105M1 is a genuine OEM radiator cap designed for various McCormick tractor models, including the CX, MC, MTX, X6, X7, and X8 series. This essential component maintains the correct pressure within the cooling system, rated at 0.9 bar, ensuring optimal engine temperature regulation and preventing coolant loss. Manufactured to McCormick's stringent quality standards, it provides a secure seal for reliable performance and direct fitment.