The Case-ih 383771R1 is a genuine OEM sealing washer designed to provide a reliable, leak-free seal in various agricultural machinery applications. With an inner diameter of 14.5 mm, an outer diameter of 20.5 mm, and a thickness of 1.5 mm, this washer is crucial for maintaining system integrity in hydraulic, fuel, or oil circuits. It is engineered to meet the exact specifications of Case IH tractors and other equipment, ensuring optimal performance and durability.