The McCormick 3689235M1 is a genuine OEM shim designed for critical spacing and alignment in McCormick agricultural machinery. This essential component ensures proper clearances, contributing to the smooth operation and extended lifespan of the equipment. Manufactured to original equipment specifications, it features an inner diameter of 35 mm, an outer diameter of 49 mm, and a thickness of 1 mm, making it suitable for specific applications in compatible tractor models.