Buick Regal 1999 Bulb Size
Bulb size chart
If you are looking up bulbs for a 1999 Buick Regal, this page helps you verify the correct bulb size by lighting position instead of guessing from the vehicle alone. That matters because the Regal could use different bulbs depending on where the lamp is located, and because trim, body style, and lighting equipment can vary by market.
Use the bulb chart to match each exterior and interior light to its listed size before you buy. On this 1999 Buick Regal, common fitment points include the high beam headlight, parking and turn signal lamps, brake and tail lamps, reverse lights, license plate lights, dome and map lights, and several courtesy and indicator bulbs.
For the best fit, compare the bulb already installed in your Regal with the chart before ordering, especially if your car has a different trim package or a lighting option that was not standard on every version. Halogen bulbs are the original-style choice for most positions listed here, while LED replacements may work in some sockets but can change brightness, beam pattern, or warning behavior. If you are considering an aftermarket conversion, make sure the bulb base, polarity, and physical clearance are correct, and always confirm the installed bulb number first so you do not rely only on model-year fitment.
FAQ
What bulb does the 1999 Buick Regal use for the high beam headlight?
The high beam headlight bulb listed for the 1999 Buick Regal is 9005.
What is the low beam bulb for this year Regal?
A low beam bulb is not listed in the available chart rows for this page, so you should verify the installed bulb directly before buying a replacement.
Which bulb fits the front turn signal on a 1999 Buick Regal?
The front turn signal bulb is listed as 4157NA.
What bulb is used for the parking light?
The parking light bulb is listed as 4157NA.
What bulb fits the brake light on the 1999 Buick Regal?
The brake light bulb is listed as 3057R.
What bulb is used for the outer tail light?
The outer tail light bulb is listed as 3057R.
What bulb fits the rear turn signal?
The rear turn signal bulb is listed as 3057.
What is the reverse light bulb size?
The back up reverse light bulb is listed as 1156.
What bulb does the license plate light use?
The license plate light bulb is listed as 194 or 7441.
What bulb fits the dome light and map light?
Both the dome light and map light are listed as 906 bulbs.
What bulb is used for the glove box light?
The glove box light bulb is listed as 194 or 7441.
What bulb fits the fog light on this Regal?
The front fog light bulb is listed as 893.
Are the bulb sizes the same on every 1999 Buick Regal?
Not always. Trim level, body style, market, and lighting package can change the bulb used in some positions, so it is smart to confirm the installed bulb before ordering.
Can I replace the original halogen bulbs with LED bulbs?
In some positions, yes, but fitment and performance can vary. Check socket compatibility, space inside the housing, and whether the LED will aim and function correctly before switching.
Why should I check the old bulb before purchase?
Because some positions on the 1999 Buick Regal can have more than one listed option or may vary by equipment, and the installed bulb is the most reliable match for your specific car.