The McCormick 6524404M1 is a genuine OEM washer designed for optimal performance and durability in McCormick agricultural machinery. This precision-engineered washer features an inner diameter of 25mm, an outer diameter of 40mm, and a thickness of 3mm. It is a critical component for ensuring proper assembly and reducing friction in various applications across McCormick X-series tractor models, including X4.20, X4.30, X4.40, X4.50, X4.60, X5.35, X5.45, X5.55, X5.100, X5.110, X5.120, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.