NOS Curtiss-Wright R-1820 Cyclone Engine Intake Valve S138874-G-9-7

Douglas DC-3 / Curtiss-Wright R-1820 Cyclone Intake Valve 7-S-138874-G-2-7

NOS Douglas DC-3 / Curtiss-Wright R-1820 Cyclone Intake Valve S138874

NOS Douglas DC-3 / Curtiss-Wright R-1820 Cyclone Intake Valve S138874-D-2-3

NOS Douglas DC-3 / Curtiss-Wright R-1820 Engine Intake Valve E-138874-S-3-4

NOS Douglas DC-3 / Curtiss-Wright R-1820 Engine Intake Valve E-138874-S-2-3

NOS Douglas DC-3 / Curtiss-Wright R-1820 Engine Intake Valve S-138874-J-3-9

Douglas DC-3 / Curtiss-Wright Engines Intake / Exhaust Valve E149195B-6-7