For the 2001 Honda Civic, both the low-beam and high-beam headlights use a 9003 bulb. The supplied fitment data does not identify a separate projector or non-projector headlight variation, so verify the existing bulb and housing before ordering.
Several rear and exterior bulbs vary by body style or have alternate listings:
- Front turn signals use 7443, while front side markers use 7443A.
- Rear turn signals are 3156 on the Coupe and 7440 on the Sedan.
- Rear side markers are 194NA on the Coupe and 7443A on the Sedan.
- Reverse lights list 7440 for the Sedan and 921 as another listed fitment.
- Brake lights use 7443R; the center stop light uses 7440.
- Parking, license plate, tail, and trunk applications may use 168 or 917, depending on the application.
Interior fitments include DE3175 for the dome light. Map light options differ by body style: the Coupe lists 2825 or 98, while the Sedan lists DE3175.