The Case IH 81815734 O-Ring is an authentic OEM replacement component engineered to provide a secure and leak-free seal in various Case IH agricultural and construction equipment. This O-Ring features an inner diameter of approximately 20.6 mm, an outer diameter of 26.9 mm, and a thickness of 3.1 mm, critical dimensions for maintaining system integrity and preventing fluid loss. It is compatible with a range of Case IH JX and Farmall series tractors, ensuring optimal performance and durability.