The Hummer H1 headlight bulb uses an H6024 size for both high beam and low beam functions. The replacement chart covers 2002 to 2006 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is the sole bulb type listed across all high beam and low beam headlight positions for the Hummer H1, covering model years 2002-2004 and 2006.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts, conforming to ANSI standards recognized in both the United States and Canada.
As a sealed beam design, the H6024 integrates the filament, reflector, and lens into a single non-serviceable assembly, meaning the entire unit requires replacement rather than an internal bulb swap.
The H6024 serves both the high beam and low beam functions, indicating the H1 uses a single sealed beam type for both lighting positions rather than separate bulb types for each.
The 7-inch round form factor of the H6024 is a standardized size, which means physically compatible sealed beam units from multiple manufacturers generally fit the same housing without modification.
Because the H6024 is an ANSI-standardized sealed beam, aftermarket and OEM replacements conforming to that standard are considered interchangeable, provided the voltage rating of 12V is matched.