The 2006 Hummer H1 represents the pinnacle of extreme off-road capability, a civilian adaptation of a military-derived platform renowned for its unparalleled mobility in diverse and challenging terrains. Engineered for robustness and durability, the H1, powered by the formidable DURAMAX 6.6L turbocharged V8 diesel engine, offers exceptional performance with features like high ground clearance, deep fording capability, and the unique Central Tire Inflation System (CTIS). Its construction prioritizes ruggedness and functionality, making it a highly specialized vehicle with no direct civilian competitors, sharing its lineage with the iconic HMMWV.

This Commercial Parts Catalog serves as an indispensable resource for owners, technicians, and enthusiasts of the 2006 Hummer H1. It provides comprehensive coverage of all major vehicle systems, including the engine, fuel, emissions, exhaust, cooling, transmission, transfer case, wheels, tires, braking, steering, axles, suspension, frame, body, HVAC, and electrical systems. The catalog's primary function is the precise identification of all replaceable parts, featuring detailed exploded diagrams and OEM part numbers crucial for sourcing correct components and understanding assembly sequences, ensuring the continued operational integrity of this ultra-high mobility vehicle.