For the 2004 Volkswagen GTI, both the low-beam and high-beam headlights use H7 bulbs. The supplied fitment data does not list a headlight-type variation, so confirm the existing bulb before ordering if your vehicle has a non-standard housing or replacement headlamp assembly.
- Fog lights: H3
- Front turn signals: 3457AK; parking lights use 3457A
- Brake and reverse lights: 7506
- Center stop light: LED
- License plate and vanity lights: 6418
- Front and rear side markers: 2825 and 5007, respectively
- Tail lights: 5007; rear turn signals use 12496
Interior applications include 6411 for the dome light and 2825 for the glove box, map, trunk, and other interior locations.