OER Parts offers a wide selection of Air Conditioning and Heater Parts for your 1956 Chevrolet One-Fifty Series. OER Parts offers 1956 Chevrolet One-Fifty Series AC Parts, 1956 Chevrolet One-Fifty Series AC Systems, 1956 Chevrolet One-Fifty Series AC and Heater Controls, 1956 Chevrolet One-Fifty Series Heater Parts, 1956 Chevrolet One-Fifty Series Air Conditioning and Heater Hoses and Parts, 1956 Chevrolet One-Fifty Series Air Conditioning and Heater Vents.