The Case IH 83974893 is a genuine OEM washer designed for critical applications in a wide range of Case IH and New Holland agricultural and construction equipment. This robust washer features an inner diameter of 25.7 mm, an outer diameter of 38.1 mm, and a thickness of 3.0 mm, ensuring a precise fit and reliable performance. It is an essential component for securing connections and distributing loads, contributing to the longevity and operational integrity of your machinery. Confirmed fitment across numerous tractor and equipment models.