1999 Dodge Ram 2500 bulb fitment starts with the headlights: the high beam uses a 9004 bulb. Low-beam listings include both 9004 and 9007, so check the original bulb and headlight assembly before ordering. The supplied fitment data does not identify a specific headlight type or configuration for choosing between these low-beam options.
For exterior lighting, the fog light uses 896, while front turn signals, parking lights, and front side markers use 3157A. The reverse light is 1156, and the center stop light is 921. Brake and tail light fitment varies: compare the original bulb to determine whether your truck uses 1157 or 3157R. Rear turn signals similarly list either 1157A or 3157A.
- Front cornering light: 3157
- Rear side marker: 194NA
- License plate: compare the original for 97 or 168
- Interior examples: dome 579, map 212-2, glove box 1891, and trunk 921
For option-based locations, match the replacement to the bulb currently installed.