OER Parts offers a wide selection of Heater Parts for your 1937 Chevrolet GC. OER Parts offers 1937 Chevrolet GC Expansion Valve, 1937 Chevrolet GC Hose Clamps, 1937 Chevrolet GC Hose Fittings, 1937 Chevrolet GC Hoses and Lines, 1937 Chevrolet GC Vent and Duct Parts.