The Case IH 5178418 is a genuine OEM adjustment shim, precisely engineered with a thickness of 3.55 mm. This critical component features an outer diameter of 40 mm and an inner diameter of 28 mm, ensuring accurate spacing and alignment in various agricultural and construction machinery applications. It is a vital part for maintaining optimal performance and reducing wear in transmissions, axles, and other rotating assemblies across a wide range of Case IH, New Holland, and Steyr tractors and equipment.