This genuine McCormick part, number 6728349A1, is an essential electrical CONTACT component designed for various McCormick tractor models. It ensures reliable electrical connections within the machine's systems. This part is compatible with McCormick X4, X5, X6, X7, and X8 series tractors, including specific models like X4.20, X4.30, X4.40, X4.50, X5.35, X5.45, X5.55, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.