The Continental Aircraft Engines IO-520 is a renowned horizontally opposed, air-cooled, fuel-injected aircraft engine, designed for reliable aircraft propulsion. With a displacement of 520 cubic inches and horsepower ratings that vary by specific model, such as 285 HP or 300 HP, the IO-520 series is known for its robust engineering and performance in demanding aviation applications. This engine series utilizes Aviation Gasoline (Avgas) and is engineered for efficiency and durability in flight.

This Parts Manual provides comprehensive information crucial for the identification and selection of components for the Continental Aircraft Engines IO-520 series. It serves as an essential resource for owners, maintenance technicians, and mechanics to ensure proper part sourcing and compatibility. The manual details various engine characteristics and specifications, enabling effective maintenance and support for the IO-520 aircraft engine, facilitating its continued reliable operation.