Lycoming O-540
| O-540 | |
|---|---|
| AEIO-540 | |
| Type | Certified Piston aircraft engine |
| National origin | United States |
| Manufacturer | Lycoming Engines |
| First run | 1957 1963 (injected version) |
| Major applications | |
| Manufactured | 1957–present |
| Developed from | Lycoming O-360 |
The Lycoming O-540 is a family of air-cooled six-cylinder, horizontally opposed fixed-wing aircraft and helicopter engines of 541.5 cubic inches (8.9 L) displacement, manufactured by Lycoming Engines. The engine is a six-cylinder version of the four-cylinder Lycoming O-360.