The McCormick 1133262R91 Seal is an authentic OEM component designed for various McCormick D-Series tractors, including models D 320, D 324, D 430, D 436, D 439, and D 440. This high-quality seal is crucial for maintaining the integrity of hydraulic or engine systems, preventing fluid leaks, and ensuring reliable operation. Manufactured to McCormick's stringent specifications, it guarantees a precise fit and long-lasting durability, essential for the demanding conditions of agricultural and industrial machinery.