The Case IH S301499 is a genuine OEM thickness shim engineered for precise spacing and adjustment within mechanical assemblies of agricultural and construction equipment. This essential component features an outer diameter of 40 mm, an inner diameter of 25 mm, and a thickness of 0.5 mm, ensuring accurate fitment and optimal performance. It is crucial for maintaining proper clearances, reducing friction, and extending the lifespan of moving parts in a wide range of Case IH and New Holland tractors and machinery.