O-320-E3D

O-320-A2A,  -A2B,  -A2C,  -A2D,  -A3A,  -A3B  |  O-320-B1A,  -B2A,  -B2B,  -B2C,  -B2D,  -B3B  |  O-320-D1A,  -D1D,  -D1F,  -D2A,  -D2B,  -D2G,  -D2J,  -D3G  |  O-320-E2A,  -E2C,  -E2D,  -E2F,  -E2G,  O-320-E3D  |  O-320-H2AD

Lycoming’s four-cylinder 320 Series engines produce 150 or 160 hp at 2,700 RPM. These engines power numerous popular aircraft produced by companies like Cessna, Piper, and kit manufacturers such as Van’s and Glasair. The 320 Series also powers the early Robinson R22 helicopter.