The McCormick 6633977A1 is a genuine OEM clutch disc designed for robust performance in agricultural machinery. This essential component ensures efficient power transfer within the transmission system, providing smooth engagement and disengagement. With an outer diameter of 310 mm, an inner diameter of 190 mm, and 10 splines, it is engineered to meet the precise specifications of McCormick, Case IH, and New Holland tractors, including models from the CX, MC, MTX, X, T, TL, TS, MXM, MXU, and TVT series.