The Case IH 84021782 Sealing Ring is an original CNH O-ring designed for various Case IH, New Holland, and Steyr agricultural and construction equipment. This genuine part provides a reliable and durable seal, crucial for maintaining system integrity. With an internal diameter of 135 mm, an external diameter of 142.2 mm, and a thickness of 3.6 mm, it ensures precise fitment and optimal performance across a wide range of models including Axial-Flow combines, Farmall, Maxxum, Puma, and Magnum tractors.