The McCormick 6718825A1 O-Ring is a genuine OEM sealing component specifically designed for various McCormick X-Series agricultural tractors. This high-quality O-ring provides a secure and leak-proof seal, crucial for maintaining optimal performance and preventing fluid loss in hydraulic or engine systems. Manufactured to precise specifications with an inner diameter of 100 mm and a thickness of 3 mm, it ensures durability and compatibility with specified McCormick models, including the X4, X5, X6, and X7 series.