This genuine McCormick 6609540A1 Lever is an authentic OEM replacement part designed for various McCormick X-series tractors. It ensures precise control and reliable operation for compatible models including the X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X4.35, X4.45, X4.55, X4.65, X4.75, X5.35, X5.45, X5.55, X5.65, X5.75, X6.420, X6.430, X6.440, X6.460, X6.470, X6.480, X6.490, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.