Buick Regal 2000 Bulb Size
Bulb size chart
The 2000 Buick Regal uses a mix of bulb sizes across the exterior and interior lighting system, and the exact fit can depend on trim, market, and body style. This page helps you verify bulb sizes by lighting position so you can match the correct bulb before you buy, whether you are replacing a headlight, tail light, dome light, or a small interior lamp.
For the 2000 Buick Regal, common bulb positions include the 9005 high beam headlight, 921 center high mount stop light, 3057R brake and outer tail light, 1156 back up light, and several interior bulbs such as 906 dome light and 168 or 194-style map and courtesy lamps. Using the bulb chart by location makes it easier to find the right replacement without guessing.
Fitment can vary on the 2000 Buick Regal, so always confirm the bulb in the vehicle before ordering, especially if your car has a different trim level or lighting package. Halogen bulbs are the usual direct replacement, while LED upgrades may fit physically but can change brightness, beam pattern, or warning behavior. Some aftermarket conversion kits also need extra resistors or adapters, so check compatibility carefully. If possible, compare the installed bulb number, connector style, and base shape to the chart before purchase to avoid a mismatch.
FAQ
What is the high beam bulb size for a 2000 Buick Regal?
The high beam headlight bulb listed for the 2000 Buick Regal is 9005.
What bulb does the center high mount stop light use?
The center high mount stop light uses bulb 921 on this model year.
Which bulb is used for the front turn signal and parking light?
Both the front turn signal light and the parking light are listed as 4157NA.
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 fits the rear turn signal on a 2000 Buick Regal?
The rear turn signal light bulb is listed as 3057.
What is the back up reverse light bulb size?
The back up reverse light bulb is 1156.
What bulb is used for the dome light?
The dome light bulb is 906.
What bulb sizes are used for map lights and courtesy lights?
Map light bulbs are listed as 168 or 917, and courtesy light bulbs may also use 168 or 917 depending on the position and original setup.
What bulb is used for the license plate light?
The license plate light bulb is listed as 194 or 7441.
Are the glove box and ash tray bulbs the same?
Yes. The glove box light bulb and ash tray light bulb are both listed as 194 or 7441.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light uses bulb 98.
What bulb is used for the side marker lights?
The front side marker light bulb and rear side marker light bulb are both listed as 194NA.
What is the fog light bulb size if my Regal has front fog lights?
The front fog light bulb is listed as 893, but fog lights are optional on some vehicles.
Should I check the installed bulb before buying replacements?
Yes. Checking the installed bulb is the best way to confirm fitment, especially if your Regal has had prior repairs, aftermarket parts, or a different trim package.