The CFM56 - 7B is a high - bypass turbofan engine, exclusively powering Boeing 737NG series and Boeing Business Jets. It has a thrust range of 19,500 - 27,300 pounds, with a 3 - stage low - pressure and 9 - stage high - pressure compressor for efficient air compression.Upgraded to the 7BE version, it cuts 1% fuel consumption and 4% maintenance costs, with interchangeable modules for easy upgrades. Featuring optional dual - annular combustors, it reduces nitrogen oxide emissions. Lightweight at around 2,370kg, it gains FAA/EASA certifications, ensuring stable operation. It’s a backbone of narrow - body airliners, trusted by global airlines for its reliability and operational flexibility.