AM General Hummer H1 Parts & Accessories

AM General Hummer H1 Parts & Accessories

The AM General Hummer, also known as the HMMWV or civilian H1, is a high-mobility military vehicle commercialized by AM General for civilian sale beginning in 1992. The original AM General civilian Hummer uses a 6.5-liter GM diesel engine, military-grade portal axles, an independent coilover suspension, and a wide body specifically engineered for off-road and overland capability in the most demanding terrain conditions.

Popular AM General Hummer Parts Categories

Common parts categories for the AM General Hummer include 6.5-liter turbo and non-turbo diesel engine components, GM 4L80E automatic transmission parts, portal axle components including hub reductions and axle seals, front and rear coilover suspension components, differential rebuild parts, brake components for the inboard brake system unique to the Hummer platform, transfer case parts for the NV242 and integrated transfer case, and body and trim components including hard top panels and soft top hardware.

What makes the AM General Hummer different from civilian Hummer H2 and H3?

The AM General civilian Hummer, also sold as the Hummer H1, is mechanically derived from the military HMMWV and features portal axles with inboard-mounted brakes, a central tire inflation system, and a 6.5-liter diesel powertrain. The GM-produced H2 and H3 are consumer SUVs based on conventional GM truck platforms and share very few parts with the original AM General H1. Parts for the original AM General Hummer require H1-specific suppliers and are not interchangeable with H2 or H3 components.

Where can I find parts for the AM General Hummer H1?

H1 Hummer parts are available through AM General-focused specialty suppliers, military surplus parts distributors, and GM parts sources for the shared 6.5L diesel and 4L80E drivetrain components. Hummer-specific parts including portal axle hardware, inboard brake components, and body panels require H1 specialist suppliers. Several dedicated online communities and club registries maintain parts sourcing guides for H1 owners.

Browse related categories in our suspension upgrades, exhaust systems, off-road accessories collections.