The 6628530A1 is a genuine McCormick gear, designed as an original replacement part for various McCormick tractor models. This authentic component ensures optimal performance and reliability for machines including the CX100, CX105, CX110, CX115, CX70, CX75, CX80, CX85, CX90, CX95, MC100, MC105, MC115, MC120, MC135, MC80, MC90, MC95, MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690, XTX185, XTX200, and XTX215 series.