For the 2008 Acura RDX, the low-beam headlight uses a D2S bulb, while the high beam uses a 9005. The daytime running light also uses 9005. The supplied fitment data does not identify a separate projector or non-projector headlight variation, so verify the bulb markings on the vehicle before ordering.
- Fog lights: Fitment is listed as H11 LED or H16 LED; compare the existing bulb and socket before selecting a replacement.
- Front lighting: The turn signal and parking light use 1157A, while the front side marker uses 168NA.
- Rear lighting: Reverse and rear turn signals use 7440. The brake light is 7443R, and the center stop light uses 921.
- Interior bulbs: The dome light uses DE3175. Floor and glove-box locations may use either 2721 or 74, so compare the original bulb. Map lights are listed as 2825 or 98.
License plate and trunk applications are listed with 168 or 917 options. Confirm the original bulb where multiple sizes are shown.