Unlike the model C1 that had the radiator located in the nose cowl, Stearman C2 aircraft with liquid-cooled engines installed had the radiator located between the main gear legs.

The most popular version of the type was the C2B which had a Wright J4 or J5 radial engine installed.

[1] In total, 33 model C2 aircraft were manufactured with the first three built in the original Stearman plant in Venice, California.

C2 model with a 180 hp Wright/Martin Hispano Suiza liquid-cooled V-8 engine C2H(1 built) 280 hp Menasco-Salmson air-cooled radial engine and counter-clockwise rotating propeller.

Custom-built aircraft with experimental "speed wings" C2K(2 built) 128 hp Siemens-Halske SH-12 air-cooled radial engine C2M(mail) 200 hp 9-cylinder Wright J4 or J5 air-cooled radial engine.