Lycoming O-320
4-CYLINDER HORIZONTALLY-OPPOSED PISTON ENGINE FAMILY BY LYCOMING
Lycoming IO-320; O-320; Lycoming 0-320; Avco Lycoming O-320; Textron Lycoming AEIO-320; Lycoming O-320-H2AD; Lycoming O-320-A2B; Avco Lycoming IO-320-B1C; Lycoming O-320-A2C; Lycoming O-320-A2B or B2B; Lycoming O-320-B2B; Lycoming O-320-A2A; Lycoming O-320-A1A; Lycoming O-320-C2A; Lycoming TIO-320-C1B; Lycoming O-320-A; Lycoming AEIO-320-D; Lycoming O-320-D1A; Lycoming O-320-D2A; Textron Lycoming AEIO-320-D1B; Lycoming O-320-E2A
The Lycoming O-320 is a large family of naturally aspirated, air-cooled, four-cylinder, direct-drive engines produced by Lycoming Engines. They are commonly used on light aircraft such as the Cessna 172 and Piper Cherokee.