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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb, Turn Signal Light Bulb Rear
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Daytime Running Light Bulb
Used for: Daytime Running Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Map Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Map Light Bulb
Used for: Parking Light Bulb(with halogen headlights), Turn Signal Light Bulb Front(with halogen headlights)
Used for: Parking Light Bulb(with HID headlights), Turn Signal Light Bulb Front(with HID headlights)
Used for: Side Marker Light Bulb Front
Used for: Side Marker Light Bulb Rear
Used for: Interior Door Light Bulb
Used for: Interior Door Light Bulb
Used for: Vanity Mirror Light Bulb
This 2013 Buick Regal bulb size guide helps you verify the correct bulb for each lighting position on the car. Whether you are replacing an exterior lamp, an interior bulb, or a headlight component, the page organizes the fitment by location so you can match the right size before you buy.
The 2013 Buick Regal was offered with different lighting setups depending on trim, package, and market, so the bulb used in one version may not be the same in another. Use the position-specific listings here to narrow down the correct bulb size for the headlight, fog light, turn signal, brake light, dome light, and other lamps on your Regal.
For best fitment, always compare the bulb chart with the lighting equipment actually installed on your car. Halogen and HID headlight packages use different bulbs, and some exterior positions may change with trim or optional lighting packages. If you are considering LED replacements or other aftermarket conversions, make sure the bulb base, shape, and electrical compatibility are correct for the housing. It is also smart to remove the old bulb and check the number printed on it before ordering, especially on vehicles that may have been modified or serviced with non-original parts.
The 2013 Buick Regal uses an H11 low beam bulb on the halogen headlight setup. If your car has HID headlights, the headlight bulb listed is D1S.
The available bulb chart for this page lists D1S for the HID headlight setup. Because trim and lighting package can vary, check the installed headlight system before ordering any high beam or low beam bulb.
For halogen headlights, the front turn signal bulb is 4157NA.
For halogen headlights, the front parking light bulb is 4157NA.
The front side marker light bulb is 194NA.
The rear side marker light bulb is 3157A.
Both the brake light and tail light use 3157R bulbs on the 2013 Buick Regal.
The back up reverse light bulb is 3157.
The rear turn signal light bulb is 3157.
The license plate light bulb is 2825 or 98.
Both the dome light and map light use 2825 or 98 bulbs on this page's bulb chart.
The vanity mirror light bulb is 7065.
The front fog light bulb options listed are 9145 LED and 9140 LED.
The daytime running light bulb options listed are H11 LED and H16 LED.
The center high mount stop light uses an LED bulb.
Yes. Trim, lighting package, and market can change the bulb used in certain positions, especially headlights and front lighting. Always verify the exact setup on the vehicle.
Yes. Checking the installed bulb is one of the best ways to confirm fitment, especially if the car has been modified, repaired, or fitted with aftermarket parts.