The Hummer H3T uses 9008 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2009 to 2010 model year data and specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9008 bulb is the sole bulb type specified for the Hummer H3T across both the high beam and low beam headlight positions for the 2009-2010 model years.
The 9008 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 65W for high beam output and one rated at 55W for low beam output.
Because the 9008 serves both beam functions within one unit, the Hummer H3T does not use separate bulbs for high and low beam operation.
The 9008 operates on a 12V electrical system, which is standard for passenger vehicle lighting circuits.
The bulb uses a P26t base, a designation that describes the physical connector and pin configuration required for proper socket fitment.
The 9008 designation conforms to ANSI standards as recognized in the United States and Canada, indicating the bulb meets defined performance and dimensional criteria within those markets.
The 9008 is also commonly cross-referenced as H13, and these designations are generally considered interchangeable in the aftermarket, though fitment should be confirmed against the P26t base specification.