The McCormick 6655759A1 Disc is a genuine OEM replacement component designed for various McCormick X-series tractors. This essential disc ensures optimal performance and compatibility with models including the X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.80, X4.90, X5.20, X5.30, X5.40, X5.50, X5.60, X5.70, X5.80, X5.90, X6.420, X6.430, X6.440, X6.460, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690, X8.660, X8.670, X8.680, and X8.690. Weighing approximately 0.05 kg, this disc is manufactured to McCormick's stringent quality standards, providing reliable operation and a precise fit.