The McCormick 6688509A1 is a genuine OEM brake caliper designed for McCormick X4, X5, X6, and X7 series agricultural tractors. This essential component ensures optimal braking performance and safety. It is compatible with specific models including 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, and X7.690. Weighing 10.00 kg, this original part guarantees precise fit and durability.