For the 2019 Nissan Altima, headlight bulb fitment depends on the headlight type. Models with halogen headlights use an H11 bulb for the low beam and a 9005 bulb for the high beam. Models with LED headlights use integrated LED lighting for both the low and high beams.
The daytime running light follows the same distinction: 9005 with halogen headlights and LED with LED headlights. Fog lights are LED. For other exterior lighting, the front turn signal uses 7444NA, the rear turn signal uses 7440, and the reverse light uses 921. Brake lights use 7443R, while the center stop light and license plate light are LED.
- Front parking light: 7444NA with halogen headlights; LED with LED headlights.
- Front side marker: 2825 or 98 with halogen headlights; LED with LED headlights.
- Rear side marker and tail light options include 2825, 98, and 7443R.
- Interior lighting includes DE3175 for the dome light, 194 or 7441 for other interior locations, and 158 for the trunk.