Log in News & Events Owner Registration Contact & Support Technical Publications Find a Distributor iE2 Portal Gear Store PRODUCTS COMPANY ENGINES EXCEEDING THE STANDARD IN GENERAL AVIATION With a reputation for meeting or exceeding TBO, it is no secret that Lycoming Engines are the power of choice for general aviation aircraft. Lycoming produces a complete line of four-, six-, and eight-cylinder piston engines boasting up to 400 horsepower. Find an Engine Search Publications Explore by Series iE2 Engine The flagship of our innovation, equipped with state-of-the-art aviation electronics and sensors for a modern flying experience. LEARN MORE Thunderbolt Engine High performance, custom built-to-order engines for every degree of thrill-seeking. LEARN MORE 541 Series Lycoming’s 541 engine series is a top induction, down exhaust, turbocharged, direct-drive engine series with side-mounted accessories producing 380 horsepower. LEARN MORE DEL-120 Series A 4-cylinder turbocharged and FADEC controlled piston aircraft engine with 205 hp of takeoff power. LEARN MORE 235 Series Lycoming’s four-cylinder 235 Series engine is a popular choice for home-built, as well as OEM-produced aircraft. With models producing up to 125 hp at 2,800 RPM, this engine powers many aircraft around the world. LEARN MORE 320 Series Lycoming’s four-cylinder 320 Series engines produce 150 or 160 hp at 2,700 RPM. These engines power numerous popular aircraft produced by companies like Cessna, Piper, and kit manufacturers such as Van’s and Glasair. The 320 Series also powers the early Robinson R22 helicopter. LEARN MORE 360 Series Lycoming’s extremely popular four-cylinder 360 engine combines rugged reliability with smooth performance, producing 145 to 210 hp. Since 1955, certified 360 cubic inch engines from Lycoming have been installed in thousands of aircraft. LEARN MORE 390 Series Lycoming’s 390 Series four-cylinder engines produce 210 hp at 2,700 RPM. One of Lycoming’s newest engines, the IO-390-A, is designed to meet the power, payload, and speed requirements of the kit aircraft segment, and is currently being certified for helicopter applications. LEARN MORE 540 Series Lycoming’s 540 Series six-cylinder engines are powerful and durable, producing 235 to 360 hp at up to 2,700 RPM. LEARN MORE 580 Series The Lycoming 580 Series of six-cylinder engines is powerful, producing 315 hp at 2,700 RPM with reliable direct drive and excellent power to weight ratio. This model meets the ever-growing performance requirements of modern-day aircraft design, and is also a popular retrofit under Supplemental Type Certificates. LEARN MORE 720 Series Lycoming's eight-cylinder IO-720 Series engines produce up to 400 hp at 2,650 RPM, and are the largest engine in production today at the Lycoming factory. LEARN MORE EL-005 Series Otto cycle spark-ignited single-cylinder 4 hp engine that is heavy fuel capable and electronically controlled. LEARN MORE SPECIALIZING BEYOND TRADITIONAL AVIATION Discover why pilots turn to Lycoming for piston engines and support. FIND A DISTRIBUTOR PRODUCT SUPPORT NETWORK CAREERS LYCOMING GEAR STORE WARRANTY Lycoming Engines is an Operating Division of Avco Corporation. ©2021 Avco Corporation. Terms & Conditions Privacy Policy Legal Employee Emergency Information