Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming IO-540 series

4,218 aircraft on the U.S. register carry a Lycoming IO-540 series engine, rated at about 300 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (1,059 aircraft). The aircraft carrying it were built between 1965 and 2026.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Lycoming IO-540 series (2 codes). FAA spellings: IO-540 SER · IO 540 SER.

Fitted to model families

Piper PA-32 Cherokee Six, Lance and Saratoga1,059Cessna 182 Skylane978Robinson R44294Piper PA-23 Apache and Aztec175Daher (Socata) TB-20151Maule M-7108Cessna 206 Stationair99Piper AEROSTAR 60184Rockwell International 11478Commander Aircraft Co 11463Maule M-647Maule MT-742

Piper PA-32 Cherokee Six, Lance and Saratoga · Cessna 182 Skylane · Robinson R44 · Piper PA-23 Apache and Aztec · Daher (Socata) TB-20 · Maule M-7 · Cessna 206 Stationair · Piper AEROSTAR 601 · Rockwell International 114 · Commander Aircraft Co 114

Where they are owner's state

Texas419Florida399California295Delaware218North Carolina124Georgia123Michigan115Pennsylvania109Alaska109Alabama108

Kind of aircraft

Piston singles3,503 (83%)Piston twins410 (10%)Helicopters296 (7%)Turboprops9 (0.2%)

When the aircraft were built by decade

Connections how this engine series links to the rest of the register

Fitted to

Piper PA-32 Cherokee Six, Lance and Saratoga 1,059 with this engine series
Cessna 182 Skylane 978 with this engine series
Robinson R44 294 with this engine series
Piper PA-23 Apache and Aztec 175 with this engine series
Daher (Socata) TB-20 151 with this engine series
Maule M-7 108 with this engine series
Cessna 206 Stationair 99 with this engine series
Piper AEROSTAR 601 84 with this engine series

Where they are

Texas 419 of these aircraft
Florida 399 of these aircraft
California 295 of these aircraft
Delaware 218 of these aircraft
North Carolina 124 of these aircraft

Biggest operators

Civil Air Patrol 55 of these aircraft
Southern Aircraft Consultancy INC Trustee 20 of these aircraft
Barr Air Patrol LLC 17 of these aircraft
International Air Services INC Trustee 16 of these aircraft
T A F Y Consulting 14 of these aircraft

Analytics

These connections as data: /graph/engine/lycoming-io-540-series.json · about the eFlight graph.

Aircraft newest certificates first · 4,218

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N78NJ	Piper AEROSTAR 601P	Fixed-wing, multi-engine	Bessie Aviation LLC Lexington Park, Maryland	Standard	2026-05-26	Valid
N9499Z	Cessna 182S	Fixed-wing, single engine	Dark Sky Enterprises LLC Flagstaff, Arizona	Standard	2026-05-26	Valid
N309MA	Maule M-7-260	Fixed-wing, single engine	Perkos Pickle Farm LLC Kalispell, Montana	Standard	2026-05-22	Valid
N289WL	Pzl Warszawa-Okecie Sa PZL-104M WILGA 2000	Fixed-wing, single engine	Individual owner New Hampshire	Standard	2026-05-20	Valid
N260NC	Piper PA-24-260	Fixed-wing, single engine	Younhorsh Sales LLC Wilmington, Delaware	Standard	2026-05-18	Valid
N5348E	Cessna 182T	Fixed-wing, single engine	Ripp Aviation LLC Providence, Utah	Standard	2026-05-15	Valid
N30697	Piper PA-32-300	Fixed-wing, single engine	Rl Flyers LLC Dover, Delaware	Standard	2026-05-14	Valid
N39478	Piper PA-32RT-300	Fixed-wing, single engine	Jacies Wings LLC Port Isabel, Texas	Standard	2026-05-14	Valid
N8184H	Piper PA-32R-301	Fixed-wing, single engine	Individual owner Florida	Standard	2026-05-14	Valid
N919DJ	Robinson Helicopter R44 II	Helicopter	Individual owner Idaho	Standard	2026-05-14	Valid
N131WC	Cessna 206H	Fixed-wing, single engine	Voigt Aviation INC Park Rapids, Minnesota	Standard	2026-05-12	Valid
N252CM	Frederick Mark FREDERICK ROCKET II	Fixed-wing, single engine	Individual owner Missouri	Experimental	2026-05-12	Valid
N7282N	Cessna 182S	Fixed-wing, single engine	Wtm Consulting LLC Williamsburg, Virginia	Standard	2026-05-12	Valid
N33SA	Piper PA-23-250	Fixed-wing, multi-engine	Mcwherter Holdings INC Asheboro, North Carolina	Standard	2026-05-11	Valid
N58PM	Maule M-7-260	Fixed-wing, single engine	Individual owner California	Standard	2026-05-09	Valid
N6L	Arnhart H L/Curry F E SWEARINGEN SX300	Fixed-wing, single engine	Individual owner Pennsylvania	Experimental	2026-05-09	Valid
N7266N	Cessna 206H	Fixed-wing, single engine	Co-owned owner Oregon	Standard	2026-05-09	Valid
N42LD	Dreyer Lawrence/Craig STARDUSTER SA-300	Fixed-wing, single engine	Jaggers Aviation LLC Tupelo, Mississippi	Experimental	2026-05-06	Valid
N363AC	Piper PA-32R-301	Fixed-wing, single engine	Aig Aeronautics LLC Guaynabo, Puerto Rico	Standard	2026-05-05	Valid
N699SP	Piper PA-32R-301	Fixed-wing, single engine	Ma Aviation LLC Danville, Illinois	Standard	2026-05-05	Valid
N50693	Britten-Norman BN-2A-21	Fixed-wing, multi-engine	Griffing Flying Service INC Port Clinton, Ohio	Standard	2026-05-03	Valid
N687HR	Craig A Cook HARMON ROCKET II	Fixed-wing, single engine	Individual owner California	Experimental	2026-05-03	Valid
N86AY	Piper PA-32R-300	Fixed-wing, single engine	N86Ay LLC Burke, Virginia	Standard	2026-05-02	Valid
N31593	Piper PA-32RT-300	Fixed-wing, single engine	N31593 LLC Key West, Florida	Standard	2026-05-01	Valid
N44863	Piper PA-32R-300	Fixed-wing, single engine	Jg Aviation LLC Indianapolis, Indiana	Standard	2026-05-01	Valid
N6305C	Socata TB-20 TRINIDAD	Fixed-wing, single engine	Danko Aviation INC Trustee Wilmington, Delaware	Standard	2026-05-01	Valid
N730DG	Daniel R Geib RV-10 STANDARD	Fixed-wing, single engine	Individual owner Pennsylvania	Experimental	2026-04-29	Valid
N444LC	Piper PA-32-300	Fixed-wing, single engine	Piper Cherokee LLC Leesburg, Virginia	Standard	2026-04-28	Valid
N992RW	Robinson Helicopter R44 II	Helicopter	Down To Fly 2 Day LLC Dover, Delaware	Standard	2026-04-28	Valid
N23655	Cessna 182S	Fixed-wing, single engine	Redline Aviation LLC Wilmington, Delaware	Standard	2026-04-25	Valid
N5555D	Cessna 182S	Fixed-wing, single engine	Individual owner New Jersey	Standard	2026-04-25	Valid
N435DE	Robinson Helicopter R44 II	Helicopter	Thunderbird Aero LLC Mertzon, Texas	Standard	2026-04-24	Valid
N372AF	Cessna 182T	Fixed-wing, single engine	Flyslow Aviation LLC Sterling, Virginia	Standard	2026-04-22	Valid
N700TE	Piper PA-60-602P	Fixed-wing, multi-engine	Individual owner Tennessee	Standard	2026-04-20	Valid
N6996A	Piper PA-23-250	Fixed-wing, multi-engine	Grape Soda Adventures LLC Weddington, North Carolina	Standard	2026-04-18	Valid
N8157M	Piper PA-32-301	Fixed-wing, single engine	Specialty Veterinary Services LLC Monteverde, Florida	Standard	2026-04-16	Valid
N8461C	Piper PA-32-301	Fixed-wing, single engine	Knot Grounded LLC Treasure Island, Florida	Standard	2026-04-16	Valid
N58YF	Siai-Marchetti SF260	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-04-13	Valid
N9258D	Piper PA-32R-301	Fixed-wing, single engine	Individual owner Delaware	Standard	2026-04-13	Valid
N737DB	Piper AEROSTAR 601P	Fixed-wing, multi-engine	Tidewater Technologies LLC Wilmington, Delaware	Standard	2026-04-09	Valid
N8665P	Piper PA-24-260	Fixed-wing, single engine	Individual owner California	Standard	2026-04-07	Valid
N321DP	Piper PA-32-300	Fixed-wing, single engine	Delta Papa LLC Henderson, Nevada	Standard	2026-04-04	Valid
N108CT	Cessna 206H	Fixed-wing, single engine	Department of Homeland Security Washington, District of Columbia	Standard	2026-04-03	Valid
N94WS	Sargent William E GLASAIR 3	Fixed-wing, single engine	Individual owner Oklahoma	Experimental	2026-04-03	Valid
N9676C	Piper PA-32RT-300	Fixed-wing, single engine	Not A Jet Yet LLC Molalla, Oregon	Standard	2026-04-03	Valid
N39459	Piper PA-32RT-300	Fixed-wing, single engine	Hubert L Hooks Jones Chpt of Tuskegee Airmen INC Denver, Colorado	Standard	2026-03-30	Valid
N72697	Cessna 206H	Fixed-wing, single engine	Cbt Aviation LLC Bellingham, Washington	Standard	2026-03-29	Valid
N2125V	Piper PA-32R-300	Fixed-wing, single engine	Individual owner Florida	Standard	2026-03-28	Valid
N3994M	Piper PA-32RT-300	Fixed-wing, single engine	Withheld at owner's request	Standard	2026-03-25	Valid
N744KG	Robinson Helicopter R44 II	Helicopter	Lehmann Air LLC Kerrville, Texas	Standard	2026-03-25	Valid
N500JA	Maule MT-7-260	Fixed-wing, single engine	Individual owner Idaho	Standard	2026-03-23	Valid
N565MC	Cessna 182S	Fixed-wing, single engine	Aviator Air Flight School LLC Houston, Texas	Standard	2026-03-22	Valid
N485ED	Piper PA-23-250	Fixed-wing, multi-engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-03-21	Valid
N5187A	Cessna 182T	Fixed-wing, single engine	Individual owner Texas	Standard	2026-03-21	Valid
N8Z	Schumacher Joe JONAS - SX-300	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-03-20	Valid
N104AB	Cessna 182S	Fixed-wing, single engine	Individual owner Arizona	Standard	2026-03-19	Valid
N79R	Jamar Enterprises Inc GLASAIR III	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-03-18	Valid
N3132F	Piper PA-32-300	Fixed-wing, single engine	N3132F LLC Metairie, Louisiana	Standard	2026-03-14	Valid
N651ED	Piper PA-32-301	Fixed-wing, single engine	Flying Colors Airpants INC Leesburg, Florida	Standard	2026-03-14	Valid
N8337H	Piper PA-32-301	Fixed-wing, single engine	Withheld at owner's request	Standard	2026-03-13	Valid
N840LP	Cessna 182T	Fixed-wing, single engine	Mys Aviation LLC Rockford, Illinois	Standard	2026-03-11	Valid
N6060F	Maule M-7-235	Fixed-wing, single engine	Individual owner Alaska	Standard	2026-03-10	Valid
N116SL	Cessna 182T	Fixed-wing, single engine	Xcel Aviation LLC Eagle, Idaho	Standard	2026-03-06	Valid
N444BW	Robinson Helicopter R44 II	Helicopter	Amigo Helicopter Services LLC Falfurrias, Texas	Standard	2026-03-06	Valid
N2724R	Cessna 182S	Fixed-wing, single engine	Echo Flight LLC Tucson, Arizona	Standard	2026-03-04	Valid
N51ME	Alan Rolland Champagne SUPER REBEL	Fixed-wing, single engine	Elliott Enterprises Group LLC Wilmington, Delaware	Experimental	2026-03-04	Valid
N386DG	Gugger David E HARMON ROCKET II	Fixed-wing, single engine	Individual owner Florida	Experimental	2026-03-02	Valid
N6010Y	Commander Aircraft Co 114-B	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-03-02	Valid
N251G	Smith AEROSTAR 601P	Fixed-wing, multi-engine	Jendair LLC New York, New York	Standard	2026-03-01	Valid
N98715	Cessna 182S	Fixed-wing, single engine	Co-owned owner New Hampshire	Standard	2026-02-28	Valid
N8575B	Michael J Baron VELOCITY XL	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-02-26	Valid
N89AV	Socata TB-20 TRINIDAD	Fixed-wing, single engine	Individual owner Louisiana	Standard	2026-02-25	Valid
N989EH	Araldi Joseph M BEARHAWK	Fixed-wing, single engine		Experimental	2026-02-25	Valid
N248AM	Piper PA-32R-301	Fixed-wing, single engine	Individual owner Massachusetts	Standard	2026-02-24	Valid
N6130X	Maule M-6-235	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-23	Valid
N8425H	Piper PA-32R-301	Fixed-wing, single engine	Individual owner Nebraska	Standard	2026-02-20	Valid
N2202U	Piper PA-32-300	Fixed-wing, single engine	Asp Legacy Holdings CORP Springwater,	Standard	2026-02-19	Valid
N928HW	Commander Aircraft Co 114-B	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-19	Valid
N123TZ	Cessna 182T	Fixed-wing, single engine	Southside Truck and Trailer INC San Antonio, Texas	Standard	2026-02-18	Valid
N15CK	Maule MX-7-235	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-18	Valid
N611RF	Eric Underwood LANCAIR 360	Fixed-wing, single engine	Individual owner New Mexico	Experimental	2026-02-18	Valid
N69LP	Piper Aircraft Corporation PA-60-601P	Fixed-wing, multi-engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-18	Valid
N895TC	Piper PA-32R-301	Fixed-wing, single engine	Individual owner Texas	Standard	2026-02-18	Valid
N53646	Piper PA-32R-301	Fixed-wing, single engine	Fhas LLC Cassopolis, Michigan	Standard	2026-02-16	Valid
N2662B	Cessna 182S	Fixed-wing, single engine	Gjl Aviation LLC Fort Worth, Texas	Standard	2026-02-14	Valid
N72762	Cessna 182S	Fixed-wing, single engine	N72762 LLC Sarasota, Florida	Standard	2026-02-14	Valid
N113JS	Sullivin James GLASSAIR III SH3	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Experimental	2026-02-13	Valid
N2223U	Cessna 182T	Fixed-wing, single engine	Dylans Rv Center LLC Waterford, New Jersey	Standard	2026-02-13	Valid
N2923N	Piper PA-32-300	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-12	Valid
N38945	Piper PA-32R-300	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-12	Valid
N456TG	Robinson Helicopter R44 II	Helicopter	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-12	Valid
N5511G	Maule M-7-260	Fixed-wing, single engine	Qualitair LLC Trustee Michelstadt,	Standard	2026-02-12	Valid
N4238C	Avions Mudry Et Cie CAP 10B	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Restricted	2026-02-11	Valid
N2193W	Cessna 182T	Fixed-wing, single engine	Azalea Utilities INC Summerville, South Carolina	Standard	2026-02-09	Valid
N2370W	Cessna 182S	Fixed-wing, single engine	Sall LLC Mill Valley, California	Standard	2026-02-09	Valid
N2454Y	Cessna 182S	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-09	Valid
N575MK	Kai Engstad RV-10	Fixed-wing, single engine	Individual owner Washington	Experimental	2026-02-09	Valid
N3058V	Socata TB-20 TRINIDAD	Fixed-wing, single engine	N5237L LLC Oswego, New York	Standard	2026-02-06	Valid
N123AX	Piper PA-32R-301	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-05	Valid
N132LE	Piper PA-32-300	Fixed-wing, single engine	Southern Aircraft Consultancy INC Trustee Casper, Wyoming	Standard	2026-02-05	Valid

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.