This manual covers the Lycoming VO 540 and TIVO 540 A2A aircraft engines, manufactured by Lycoming Engines. These air-cooled, horizontally opposed piston engines, with a displacement of 540 cubic inches, are designed for helicopter propulsion and utilize Aviation Gasoline (Avgas). They represent robust engineering for demanding aviation applications.

This Parts Manual provides comprehensive information essential for the identification and procurement of components for the Lycoming VO 540 and TIVO 540 A2A engines. It details the various parts, their specifications, and their intended applications within the engine assembly. This document is crucial for maintaining the operational integrity and performance of these critical aircraft propulsion systems.