The Franklin O-265 (company designation 6AC-264) was an American air-cooled aircraft engine of the early 1940s. The engine was of six-cylinder, horizontally-opposed layout and displaced 265abbr=onNaNabbr=on. The power output ranged between 120abbr=onNaNabbr=on and 140abbr=onNaNabbr=on depending on variant. The 6ACG-264 featured a geared propeller drive.