For the 2019 Nissan Titan, the high-beam headlight uses a 9005 bulb. Low-beam fitment depends on the headlight assembly: trucks with halogen headlights use H11, while trucks with LED headlights use an LED low-beam unit.
- Fog light options are listed as H11 LED or H16 LED.
- Front turn signals use 7444NA. Parking-light fitment follows the headlight type: 7444NA with halogen headlights or LED with LED headlights.
- Front side-marker options are 2825 and 98; daytime running lights use P13W.
- Rear lighting includes 3057R tail-light bulbs, 3057 rear turn-signal bulbs, and 921 or PW16W brake-light bulbs.
- The center stop light and license-plate light are LED. Interior fitment includes DE3175 for dome and map lights, 2721 for the glove box, and 158 for the step light.