The Case IH 199118250407 O-RING is an authentic OEM sealing component designed for a wide range of Case IH agricultural and construction equipment. This high-quality O-ring features an inner diameter of 18.25 mm and a thickness of 3.49 mm, resulting in an outer diameter of 25.23 mm. It ensures a reliable seal to prevent leaks and maintain system integrity, crucial for optimal performance and preventing fluid loss in hydraulic, fuel, or lubrication systems across various models including MAXXUM, PUMA, JXU series tractors, and Axial-Flow combines.