For the 2001 Toyota Sequoia, both the low-beam and high-beam headlights use a 9003 bulb. The supplied fitment data does not list a projector or non-projector headlight distinction, so confirm the original bulb before ordering if the lamp assembly has been replaced or modified.
Other useful exterior bulb applications include 3157A for the front turn signals, parking lights, and front side markers. The rear turn signal uses 7440, while the brake light uses 7443R. The rear side marker is listed as 7443A.
- Reverse light: 921
- Tail light: 168, 917, or 7443R applications are listed
- Center stop and license plate lights: 168 or 917
- Dome and trunk lights: DE3175
- Glove-box light: 37
For interior courtesy lighting, compare the original bulb: the data lists 194 or 7441 for one option, and DE3021 for another. Map lights are listed as 194 or 7441.