This Service Parts Catalog provides comprehensive information for the AM General Hummer H1 Commercial models produced between 1992 and 1994. The Hummer H1 is renowned for its extreme off-road capability, robust construction, and military heritage, occupying a unique niche for unparalleled performance in challenging terrains. Key distinguishing features include its substantial ground clearance, aggressive approach and departure angles, and the advanced Central Tire Inflation System (CTIS). Powered by either a 6.2L or 6.5L diesel engine, and equipped with a heavy-duty automatic transmission and 2-speed transfer case, the Hummer H1 was engineered for durability and exceptional load-carrying capacity.

This manual serves as an essential resource for identifying and ordering correct replacement parts for the Hummer H1. It meticulously details major assemblies such as the engine, fuel system, cooling system, drivetrain, brakes, steering, suspension, body, HVAC, and electrical systems. The catalog includes exploded views with part numbers and descriptions, crucial for accurate part selection and inventory management. While not a repair manual, the detailed diagrams offer visual guidance for assembly and disassembly sequences, making it invaluable for owners, mechanics, and technicians dedicated to maintaining the integrity and functionality of their Hummer H1.