This manual covers Lycoming Aircraft Engines models IO-540 J, K, M, N, P, and R, a series of horizontally opposed, naturally aspirated aircraft engines designed for aviation propulsion. These 6-cylinder engines, with a displacement of 540 cubic inches and fuel injection systems, are renowned for their robust engineering and reliability in demanding flight conditions. The IO-540 series represents a significant contribution to aviation powerplants, offering dependable performance for a wide range of aircraft applications.

The purpose of this Parts Manual is to provide comprehensive information for the identification and ordering of replacement parts for the specified Lycoming IO-540 engine variants. It details critical components, specifications, and part numbers, serving as an essential resource for aircraft owners, maintenance technicians, and aviation mechanics. By utilizing this manual, users can ensure the correct parts are sourced, facilitating efficient maintenance and the continued airworthiness of these vital propulsion systems.

This manual covers Lycoming Aircraft Engines models IO-540 J, K, M, N, P, and R, a series of horizontally opposed, naturally aspirated aircraft engines designed for aviation propulsion. These 6-cylinder engines, with a displacement of 540 cubic inches and fuel injection systems, are renowned for their robust engineering and reliability in demanding flight conditions. The IO-540 series represents a significant contribution to aviation powerplants, offering dependable performance for a wide range of aircraft applications.

The purpose of this Parts Manual is to provide comprehensive information for the identification and ordering of replacement parts for the specified Lycoming IO-540 engine variants. It details critical components, specifications, and part numbers, serving as an essential resource for aircraft owners, maintenance technicians, and aviation mechanics. By utilizing this manual, users can ensure the correct parts are sourced, facilitating efficient maintenance and the continued airworthiness of these vital propulsion systems.