The McCormick 6660954A1 is a genuine OEM support designed for a wide range of McCormick tractors. This essential component ensures proper structural integrity and fitment across various X4, X5, X6, X7, X8, X9, and X60 series models, including X60.20, X60.30, X60.40, X60.50, X50.20, X50.30, X50.40, X50.50, 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, X6.30, X6.40, X6.50, X6.60, X6.70, X6.80, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, X8.680, X8.690, X9.660, X9.670, X9.680, X9.690.