The McCormick 3551731M1 is a genuine differential crown wheel designed for optimal performance in McCormick CX and MC series tractors. This robust component features an outer diameter of 390 mm and 69 teeth, ensuring precise power transfer within the differential assembly. It is also compatible with a wide range of Massey Ferguson tractor models, including the 3000, 4200, 4300, 5400, 6100, 6200, 6400, 7400, 8100, and 8200 series, serving as a critical part for maintaining drivetrain integrity and efficiency.