The McCormick 6628718A1 is a genuine OEM crown wheel designed for the differential assembly of McCormick CX series tractors, including models CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, CX100, CX105, CX110, and CX115. This essential component ensures proper power transfer within the drivetrain. It is also compatible with various Case IH CX series, Landini, and Valpadana tractor models, offering a reliable replacement for maintaining optimal machinery performance.