The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming O-360-C4P

102 aircraft on the U.S. register carry a Lycoming O-360-C4P engine, rated at about 180 horsepower. The Cub Crafters Inc CC18 is the model most often fitted with it (34 aircraft). The aircraft carrying it were built between 1949 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 O-360-C4P. FAA spelling: O-360-C4P.

Fitted to model families

Cub Crafters Inc CC1834Cub Crafters CC1823American Champion Aircraft 7 Citabria and Champ22Piper PA-18 Super Cub12Bostwick Brent PA18-2001Coon Richard W GLASTAR1Cub Crafters PA181Piper/Cub Crafters PA-181Reese Rick Lee SAFARI1Samuel K Soloy SS SUPERFUN1Thomas Wooten SMITH SUPER CUB1Tubbs S/Performance Air Inc PA18-2251

Cub Crafters Inc CC18 · Cub Crafters CC18 · American Champion Aircraft 7 Citabria and Champ · Piper PA-18 Super Cub · Bostwick Brent PA18-200 · Coon Richard W GLASTAR · Cub Crafters PA18 · Piper/Cub Crafters PA-18 · Reese Rick Lee SAFARI · Samuel K Soloy SS SUPERFUN

Where they are owner's state

Idaho12Alaska10Utah9Texas6Florida6Wisconsin5Washington5Oregon4Nevada4Montana4

Kind of aircraft

Piston singles101 (99%)Helicopters1 (1.0%)

When the aircraft were built by decade

0102031411194021950519602197011980302000412010162020

What the FAA has certified, ordered and been told about the Lycoming O-360-C4P the component layer

The design is held under 1 type certificate (E-286, held by Lycoming Engines). The FAA has issued 14 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 13 failure reports with the FAA since 1995, 2 of them in the last ten years.

FAA orders 14 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2017-08-152017-16-11 · Reciprocating Engine Power Section · engine
2012-10-242012-19-01 · Crankshafts · engine
2012-03-272012-03-07 · Carburetor · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine

All orders naming the Lycoming O-360-C4P

Failure reports 13 since · what operators and shops told the FAA

01245108109211112514115122125

Parts most often reported as the reports name them

Engine3Air Box1Carburetor1Exhaust Duct1Exhaust Valve1G Switch1Muffler1Retainer1Ring Gear1Riser1

Latest reports

2025-08-14Exhaust Valve: departed
2022-03-01None: none
2015-03-05G Switch: faulty
2014-12-17Riser: cracked
2014-11-06Exhaust Duct: misaligned

Certificates and bulletins

E-286Type certificate held by Lycoming Engines · 72 models listed · revised April 30, 2013

Safety bulletins 6 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

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

Fitted to
Where they are
  • Idaho 12 of these aircraft
  • Alaska 10 of these aircraft
  • Utah 9 of these aircraft
  • Texas 6 of these aircraft
  • Florida 6 of these aircraft
Biggest operators
Airworthiness

These connections as data: /graph/engine/lycoming-o-360-c4p.json · about the eFlight graph.

Aircraft newest certificates first · 102

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N955DW Cub Crafters
PA18-150
Fixed-wing, single engine Individual owner
Idaho
Multiple 2004-05-27 ValidFAA registration status code V: Valid registration. All codes
N968BC American Champion Aircraft
7GCBC
Fixed-wing, single engine American Champion Aircraft CORP
Rochester, Wisconsin
Standard Valid (manufacturer)FAA registration status code M: Valid, assigned to the manufacturer under its dealer certificate. All codes
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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.