Individually Owned: 150,657
Corporate Owned: 137,281
Lycoming Io-540-C4D5D Aircraft Engine
| Manufacturer Name | Lycoming |
| Model Name | Io-540-C4D5D |
| Aircraft Engine Type | Reciprocating |
| Horsepower or Pounds of Thrust (For Reciprocating Engines) |
250 hp |
| Thrust | n/a |
| Number of aircraft regsitrations with this engine type | 29 |