This genuine McCormick 6513857M91 valve is a critical component for various McCormick CX series tractors, including models CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, CX100, CX105, CX110, and CX115. It also fits Landini Vision series tractors. This OEM valve ensures optimal performance and is a direct replacement for part numbers 3617349M91 and 3617349M92. With a length of 95 mm, height of 51 mm, and weight of 0.12 kg, it is designed for precise fitment and durability.