The Dodge Ram 3500 Van uses 9004 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1999 to 2003 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 9004 is the sole headlight bulb type listed for the Dodge Ram 3500 Van across the 1999-2003 model years, covering both the high beam and low beam positions.
The 9004 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 65 watts for high beam output and one rated at 45 watts for low beam output.
Because both the high beam and low beam positions share the same 9004 specification, the Ram 3500 Van uses a single bulb per headlight assembly to serve both lighting functions rather than a dedicated bulb for each.
The 9004 operates on a 12-volt electrical system, which is standard for passenger and light commercial vehicles of this type.
The 9004 uses a P29t base, a connector type specific to this bulb family. Bulbs with different base configurations are not interchangeable with this socket, regardless of wattage similarity.
The 9004 carries ANSI standardization recognized in both the United States and Canada, meaning the bulb conforms to a defined set of performance and dimensional criteria established by that standards body.
The 9004 bulb type is sometimes confused with the 9007, which also features a dual-filament design and a similar base profile. The two are not interchangeable, as the wattage ratings and internal pin orientations differ between them.