The McCormick 711231R3 is a genuine OEM oil seal designed for a wide range of McCormick, Case IH, and International Harvester agricultural equipment. This critical component ensures a tight seal, preventing oil leaks and protecting internal machinery parts from contaminants. With an outer diameter of 76.2 mm, an inner diameter of 50.8 mm, and a thickness of 12.7 mm, this durable seal is engineered for precise fitment and long-lasting performance in demanding operational environments. It is a direct replacement for older part numbers 711231R2 and 711231R1.