For the 2008 Dodge Ram 3500, the low-beam and high-beam headlights both use an H13 bulb. The supplied fitment data does not indicate a separate headlight variation by housing or configuration, so verify the original bulb before ordering if the truck has been modified.
The front fog lights use 9006 LED bulbs. Front turn signals and parking lights use 3157A, while the front side markers use 2825. At the rear, the brake and tail lights use 3157R, and the rear turn signals use 3157A. Reverse lights take 921 bulbs, and the center stop light uses 912.
Other listed applications include 168 for the license plate, 578 for the dome light, 37 for the courtesy light, and 561 for the engine compartment. The glove box uses 194. For the map light, compare the original bulb because the data lists either 194 or 212-2. The trunk light uses 912.