The Case-IH 5178499 is a genuine OEM shim designed for critical clearance adjustments in various Case-IH agricultural and construction equipment. This precision-engineered shim ensures optimal spacing and alignment of components, contributing to the longevity and performance of transmissions, axles, and gearboxes. With a thickness of 2.54 mm, an outer diameter of 50.8 mm, and an inner diameter of 38.1 mm, it meets strict Case-IH quality standards for reliable operation.