For the 2018 Toyota Sienna, high beams use 9005 bulbs. Low-beam fitment depends on the headlight system: models with halogen headlights use H11 bulbs, while models with HID headlights use D4S bulbs. Confirm the headlight type before ordering, since these low-beam options are not interchangeable.
- Fog lights: Listed options are H11 LED and H16 LED.
- Front turn signals and parking lights: Compare the original bulb before purchase; the listed options are 3457A or 7444NA.
- Brake and tail lights: Halogen-headlight models use 7443R, while LED-headlight models use LED assemblies. Additional listed tail-light options are 168 and 917.
- Daytime running lights: 9005 with halogen headlights or LED with LED headlights.
- Reverse lights: 921. Rear turn signals use 7440A.
- License plate lights: 168 or 917. The center stop light and rear side marker are LED.
For front side markers, compare the original bulb as fitment may be 3457A or 168NA.