This page is an online original parts catalog tailored to Hummer vehicles sold and serviced in the USA. It provides factory parts diagrams for assemblies and systems, detailed callouts, and OEM part numbers to help you identify the exact original spare parts needed for service and repair. Because the model range and configurations on this page are specific to the United States, the diagrams and parts lists align with US-market equipment, emissions calibrations, lighting, and safety requirements.
Above you will find the complete list of series and generations relevant to the USA. The catalog supports selection by model, generation, and production years, browsing illustrated diagrams, and searching by OEM number. You can also refine selection by VIN to match the precise build of a vehicle.
Refer to the list above for all available series. Key examples include classic off‑road focused models like H2 (2003 - 2009) and H3 (2006 - 2010), as well as the modern Hummer EV (2022 - 2025). For H2 and H3 you will find diagrams for engines, transfer cases, suspension and steering, body panels, interior equipment, and electrical systems typical of US usage. For the Hummer EV (2022 - 2025), the catalog includes high‑voltage components, thermal management, charging hardware, and EV‑specific body and interior parts aligned with US specifications.
Conditions common in the USA—dense urban traffic, long highway trips, towing, and mixed on‑/off‑road use—make correct selection of genuine parts important for durability and safety. Using the USA‑specific catalog helps avoid mismatches related to regional lighting, instrumentation, emissions, and harness variations.
For the most precise selection, decode the vehicle identification number to reveal your HUMMER's exact configuration — series, engine, transmission, and USA-specific equipment like EPA/CARB emissions, SAE lighting, DOT safety equipment, and Federal/California-spec components. Use the run a HUMMER VIN lookup to open a catalog filtered to your build. If you maintain multiple brands or need to identify a vehicle with unclear history, the universal VIN search helps with any car or truck. You can also search directly by OEM part number to verify applicability across engines, trims, and model years in USA.
Hummer vehicles for the USA can differ from other regions in emissions hardware, diagnostic protocols, lighting and cluster layouts, gear ratios, and wiring harnesses. Selecting parts within this USA catalog reduces the risk of ordering components that look similar but do not fit due to regional differences. Diagrams and OEM numbers here reflect USA‑market builds, which is especially important for safety systems and EV high‑voltage parts.
Start by selecting your series and generation in the list above to browse original Hummer parts diagrams, read OEM numbers, and identify the exact components needed. Whether you maintain an H2, an H3, or a Hummer EV, this USA‑focused catalog helps you source the correct original spare parts with confidence.


