Dodge Ram 5500 high beam and low beam headlight bulbs both utilize a 9008 size. The replacement chart covers 2008 to 2010 vehicle production 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 9008 bulb is the sole bulb type listed across all headlight positions in the Dodge Ram 5500 specifications for 2008-2010.
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 filament functions within one unit, the Dodge Ram 5500 (2008-2010) uses the same physical bulb for both the high beam and low beam headlight positions.
The 9008 operates on a 12V electrical system, which is standard for passenger and commercial vehicle applications in this class.
The bulb uses a P26t base, a single-contact bayonet-style fitting that is specific to dual-filament bulbs of this type and is not interchangeable with single-filament base types.
The 9008 designation follows the ANSI standard recognized in both the United States and Canada, indicating the bulb meets defined performance and dimensional criteria for those markets.
The 9008 is also commonly cross-referenced as H13, and these designations refer to the same bulb construction, though fitment should be confirmed against the ANSI-coded specification listed for the vehicle.