The McCormick 258444A1 Ring is a genuine OEM component designed for various McCormick X-series tractors. This essential ring ensures proper sealing and functionality within the machine's system. It is also cross-referenced as an OEM part for Case IH and New Holland equipment under the same part number, guaranteeing compatibility and reliability across CNH Industrial brands. With an inner diameter of 40 mm, an outer diameter of 50 mm, and a thickness of 10 mm, this ring is engineered to exact specifications for a perfect fit.