The Dodge Ram 4500 high beam and low beam headlight bulbs both utilize a 9008 bulb size. The replacement chart covers vehicle production years spanning 2008 to 2010.
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 for the Dodge Ram 4500, covering model years 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 carries both filaments within one unit, it serves both the high beam and low beam headlight positions simultaneously, rather than requiring separate bulbs for each function.
The 9008 operates on a 12-volt 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 headlight applications and is not interchangeable with single-filament base types.
The 9008 designation follows ANSI standards recognized in both the United States and Canada, meaning the bulb conforms to a regulated specification for light output, voltage, and physical form.
The 9008 is also commonly cross-referenced as H13, and the two designations refer to the same bulb type under different naming conventions, which is relevant when sourcing replacement parts.