The McCormick 3659387M1 shim is an original equipment manufacturer (OEM) part designed for precise fitment in various McCormick agricultural machinery. This genuine shim ensures proper spacing and alignment, critical for the optimal function and longevity of components in models such as the CX, MC, MTX, X60, X7, and XTX series tractors. Measuring approximately 38.1 mm in length and width, with a thickness of 1.5 mm, it is a vital component for maintaining specified tolerances.