The McCormick 3671553M91 duct is a genuine OEM component designed for air or fluid transfer in various Massey Ferguson and McCormick agricultural tractors. This essential duct measures 300mm in length with a 60mm diameter, ensuring proper fitment and optimal system performance. It is compatible with a wide range of models, including Massey Ferguson 100, 200, 500, 600, 3000, 3100, 3600, 6100, and 8100 series, as well as McCormick CX, MC, MTX, XTX, and ZTX series tractors.