The Case IH 1500626C91 is a genuine OEM radiator cap designed for a wide range of Case IH, International Harvester, and Farmall tractors, combines, cotton pickers, and other agricultural and construction equipment. This 7 PSI (0.48 bar) pressure cap ensures proper cooling system function by maintaining optimal pressure, preventing coolant loss and overheating. Constructed to OEM specifications, it provides a precise fit and reliable performance for critical engine cooling applications. Key dimensions include an outer diameter of 53.98 mm, an inner diameter of 31.75 mm, and a depth of 23.81 mm.