The McCormick 3428571M1 O-Ring is a genuine OEM sealing component designed for a wide range of agricultural and industrial machinery. This high-quality O-ring provides a critical, leak-proof seal, maintaining system integrity and optimal performance in compatible McCormick, Massey Ferguson, Landini, Valtra, Fendt, and Challenger equipment. Manufactured to precise specifications, it features an inner diameter of 76.2 mm, an outer diameter of 82.55 mm, and a thickness of 3.175 mm, ensuring a perfect fit and durable operation.