This is a genuine CNH Industrial O-Ring, part number 6659947A1, designed for a wide range of McCormick, Case IH, and New Holland agricultural and construction machinery. Measuring 25.07mm internal diameter, 31.07mm external diameter, and 3mm thickness, this O-ring ensures a reliable seal in various hydraulic and fluid systems. It is an essential component for maintaining optimal performance and preventing leaks in compatible tractors and equipment.