For the 2001 Dodge Dakota, the low-beam and high-beam headlights both use a 9007 bulb. The supplied fitment data does not indicate a separate headlight bulb for different headlamp types or configurations.
Front fog lights use 898 bulbs. The front turn signals, parking lights, rear turn signals, and reverse lights use 3157 bulbs. Brake and tail lights use the red-tinted 3157R, while the center stop light uses 921. The front side markers use 194NA.
For smaller lighting applications, the license plate accepts either 168 or 917. Interior and utility fitments include 161 for the ash light, 904 for the courtesy light, 561 for the engine compartment, and 921 for the trunk. Map and glove-box lighting may use either 194 or 7441. Compare the original bulb for the dome light—options are 578 or 579—and for the instrument lighting, where 158, PC194, or PC74 may apply.