The McCormick 3689083M1 is a genuine OEM heating air duct designed for various McCormick agricultural tractor models. This essential component ensures proper air circulation within the cabin's heating system, contributing to comfortable operating conditions. It is compatible with McCormick CX series (CX75, CX85, CX95, CX105, CX110), MC series (MC80, MC90, MC95, MC105, MC115, MC120, MC130, MC135), and MTX series (MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200) tractors, ensuring a precise fit and reliable performance.