The Dodge Ram 1500 Van uses a 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 Dodge Ram 1500 Van uses the 9004 bulb for both high beam and low beam headlights across the 1999-2003 model years.
The 9004 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both high and low beam functions within one housing.
Because the 9004 handles both beam functions in the Dodge Ram 1500 Van, the high beam and low beam positions share the same bulb type rather than requiring separate bulb sizes for each.
The 9004 operates at 12 volts and carries a wattage rating of 65W on the high beam filament and 45W on the low beam filament, reflecting the higher power demand of high beam output.
The 9004 uses a P29t base, which is a specific connector configuration that determines physical fitment into the headlight socket and is not interchangeable with other base types.
The 9004 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning its electrical and physical specifications conform to a defined industry standard rather than being proprietary.
The P29t base of the 9004 is keyed in a way that prevents incorrect installation orientation, which is relevant given that the two filaments must align precisely with the headlight reflector to produce correct beam patterns.