Buick Regal 2001 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2001 Buick Regal by lighting position, so you can match the correct replacement to each lamp on the car. Whether you are replacing a headlight, tail light, interior bulb, or a small marker light, checking the position first is the easiest way to avoid ordering the wrong part.
For the 2001 Buick Regal, bulb fitment can vary a little by trim, body style, and lighting package, so it is smart to compare the bulb chart with the bulb already installed in your vehicle. Use this guide as a position-by-position reference for common exterior and interior lights, including high beam, brake, reverse, dome, map, license plate, and instrument panel bulbs.
Before buying replacements, confirm whether your Regal uses halogen bulbs, and be careful with LED upgrades or aftermarket conversion kits because the bulb base may fit even when the beam pattern or brightness is not ideal. Some lighting positions can also differ by market or option package, so the safest approach is to inspect the installed bulb, match the base and size, and compare both sides of the vehicle if one lamp is still working. If you are switching to LED, make sure the bulb is compatible with the socket and that any required resistors or load modules are considered for turn signals and other monitored circuits.
FAQ
What is the high beam bulb size for a 2001 Buick Regal?
The high beam bulb listed for the 2001 Buick Regal is 9005.
What bulb does the center high mount stop light use?
The center high mount stop light bulb is 921.
Which bulb fits the front turn signal and parking light?
Both the front turn signal light and the parking light use 4157NA on this page.
What are the brake and outer tail light bulb sizes?
The brake light bulb and the outer tail light bulb are both listed as 3057R.
What bulb is used for the rear turn signal?
The rear turn signal light bulb is 3057.
What is the back up reverse light bulb size?
The back up reverse light bulb is 1156.
Which bulb fits the license plate light?
The license plate light bulb is 194, 7441.
What bulb should I use for the dome light?
The dome light bulb is 906.
What are the map light bulb options?
The map light bulb options listed are 168 and 917.
Are there different courtesy light bulb options on this Regal?
Yes. Courtesy light bulbs are listed with two options: 168, 917 for one fitment and 2721 for another fitment note on the page.
What bulb fits the glove box and ash tray lights?
Both the glove box light and ash tray light use 194, 7441.
What is the instrument panel bulb size?
The instrument panel light bulb is PC195.
What bulb is used for the high beam indicator?
The high beam indicator light bulb is also PC195.
Does the 2001 Buick Regal have a fog light bulb listed?
Yes. The front fog light bulb is listed as 893, and it is marked optional.
Why should I check the bulb already installed before ordering?
Because trim and lighting package differences can affect fitment, checking the installed bulb helps confirm the correct base and avoids ordering the wrong replacement.