The Case-IH 16875973 is a genuine OEM lock washer designed to prevent loosening of bolted joints due to vibration and torque. This critical component ensures secure fastening in a wide range of Case-IH agricultural and construction equipment, including various combine harvesters and tractors. With an inner diameter of 16.51 mm, an outer diameter of 26.67 mm, and a thickness of 3.175 mm, it provides reliable performance and maintains the integrity of machinery assemblies.