This manual pertains to the Lycoming IO-540 V4A5D, an aircraft engine designed for aviation propulsion. As a horizontally opposed, normally aspirated, fuel-injected engine, it features six cylinders with a wide cylinder flange design. This engine is engineered for reliable performance and is intended for use with Aviation Gasoline (Avgas). Its robust construction and proven design make it a staple in aviation, ensuring dependable power for flight operations.

The purpose of this Illustrated Parts Catalog (IPC) is to provide comprehensive parts identification and cataloging for the Lycoming IO-540 V4A5D. With 57 pages and format PC-615-3, this manual is an essential resource for maintaining the integrity and operational readiness of the engine. It assists owners, mechanics, and technicians in accurately identifying and procuring the correct replacement parts, thereby ensuring the continued safe and efficient operation of the aircraft engine.