The Case IH 3147646R1 is a genuine OEM thickness plate, also known as a shim plate, designed for precise spacing and alignment within various Case IH agricultural machinery. This critical component helps maintain optimal clearances in assemblies such as transmissions and axles, preventing wear and ensuring smooth operation. With an outside diameter of 28.5 mm, an inside diameter of 19.1 mm, and a thickness of 0.25 mm, it is engineered to exact specifications for a perfect fit and reliable performance in compatible Case IH tractor models.