The McCormick 6628729A1 is a genuine OEM gear designed for various McCormick X-series tractors, including X4, X5, X6, X7, and X8 models. This critical component ensures proper power transmission and operational efficiency within the machinery. Manufactured to McCormick's stringent quality standards, it provides reliable performance and a precise fit for maintaining your agricultural equipment. Verify fitment with your specific tractor model.