The McCormick 3545395M1 is a genuine OEM valve guide designed for precise fitment and reliable engine operation in various McCormick tractor models, including the CX, MC, MTX, XTX, and ZTX series. This critical engine component ensures proper valve stem alignment and reduces wear, contributing to the longevity and efficiency of the engine. With a length of 95 mm, an outer diameter of 16 mm, and an inner diameter of 8 mm, it meets original equipment specifications.