The McCormick 6679529A1 Filling Cap is a genuine OEM replacement part designed for various McCormick, New Holland, and Case IH agricultural machinery. This essential component ensures proper sealing for fluid reservoirs, preventing leaks and contamination. It is compatible with McCormick X4, X5, X6, X7, X8 series tractors, New Holland T4, T5, T6, T7, T8, T9 series tractors, and Case IH T4, T5, T6, T7, T8, T9 series tractors. With a weight of 0.12 kg and dimensions of 95mm length, 95mm width, and 51mm height, this filling cap meets original equipment specifications for reliable performance.