Restore your interior airflow function with this exact reproduction center dash heater air duct for non-A/C-equipped 1968–1977 C3 models. This molded plastic duct fits behind the center gauge cluster and routes heated air from the inner heater box to the upper dash outlet. Often missing, warped, or cracked, this duct ensures factory-correct venting over the gauge cluster and wiper switch plate—restoring comfort and correct climate control function to your cabin.
Features • Fits 1968–1977 C3 without factory air conditioning • Replaces GM part number 3940249 • Mounts behind center dash and gauge cluster • Channels air from heater box to center console vent • Molded plastic construction for correct fit and shape
Tech Notes • This duct attaches to the inner heater box and routes air behind the upper dash vent assembly • Compatible only with C3s originally built without A/C
Because Details Matter This small but crucial duct restores the correct air path behind your dash panel and ensures proper airflow to the center vent area. A must-have for any accurate restoration of a non-A/C C3 interior—especially when replacing the heater box or refurbishing the dash cluster.