The McCormick 3667302M91 Duct is an original equipment manufacturer (OEM) part designed to ensure proper airflow and system functionality in various agricultural tractors. This genuine duct is specifically fitted for McCormick X5 Series (X5.35, X5.45, X5.55, X5.40, X5.50, X5.60), X6 Series (X6.420, X6.430, X6.440, X6.460, X6.470, X6.480), X7 Series (X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X7.690), and X8 Series (X8.660, X8.670, X8.680, X8.690) tractors. It is also compatible with Landini 5 Series (5-100, 5-110, 5-120), 6 Series (6-120C, 6-130C, 6-140C, 6-160C, 6-170C, 6-180C), 7 Series (7-160, 7-170, 7-180, 7-200, 7-210, 7-220, 7-230), 8 Series (8-200, 8-210, 8-220, 8-230), and Valpadana 7000 Series (7040, 7050, 7060) models.