For the 2000 Dodge Ram 2500, the high-beam headlight uses a 9004 bulb. Low-beam fitment is listed as either 9004 or 9007, so compare the existing bulb and socket before ordering; the correct option depends on the truck’s original headlight configuration.
The fog lights use 896 bulbs. Front turn signals, parking lights, and front side markers use 3157A, while rear side markers use 194NA. Reverse lights take 1156 bulbs, and the center stop light uses 921.
Brake and tail light fitment varies: compare the original bulb to determine between 1157 and 3157R. Rear turn signals may use 1157A or 3157A. License plate lighting is listed as either 97 or 168, so verify the original before replacement. Common interior applications include 194 for courtesy lighting, 579 for the dome light, and 921 for the trunk light.