The McCormick 6678963A1 is a genuine OEM oil seal, precisely engineered with dimensions of 35mm inner diameter, 50mm outer diameter, and 8mm width. This critical component is designed to prevent fluid leakage and protect internal machinery from contaminants, ensuring optimal performance and longevity for various McCormick agricultural equipment. It is compatible with McCormick CX series (CX50-CX175), MC series (MC100-MC135), and MTX series (MTX110-MTX200) tractors, as well as equivalent Case IH models.