The McCormick 3541397M1 is a genuine OEM washer designed for various McCormick agricultural machines. This high-quality washer ensures secure and reliable fastening, preventing loosening due to vibration and wear. With an inner diameter of 20.5 mm, an outer diameter of 35 mm, and a thickness of 3 mm, it provides precise fitment for critical applications in models such as the MC, MTX, CX, and XTX series, maintaining the integrity of your equipment.