2018 Buick Regal TourX Bulb Sizes
Quick answer: the 2018 Buick Regal TourX uses H7 low and high beams and H8 fog lights.
2018 Buick Regal TourX bulb size chart
| Position | Bulb size (tap to shop) |
|---|---|
| Fog Light Bulb Front | H8 |
| Headlight Bulb High Beam | H7 |
| Headlight Bulb Low Beam | H7 |
| Turn Signal Light Bulb Rear | 921 |
| Back Up Reverse Light Bulb | 921 |
Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.
Which bulb should I buy?
- Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
- Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
- Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.
Our picks by bulb size
H8 (fog light front)
H7 (headlight high beam, headlight low beam)
- Top pick: Sylvania H7 XtraVision halogen (2 bulbs)
921 (turn signal light rear, back up reverse light)
- Halogen: Sylvania 921 Long Life (2 bulbs)
- LED: LASFIT 921 LED (pack of 2)
For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.
While you're in there
- Cloudy headlights? New bulbs won't fix a yellowed lens. A replacement housing makes a bigger difference than any bulb: see Buick Regal TourX headlights at NTXGlow.
- Tail lights faded or cracked? Buick Regal TourX tail lights at NTXGlow.
Common questions
What size is the low beam headlight bulb on a 2018 Buick Regal TourX?
H7.
What size is the high beam headlight bulb on a 2018 Buick Regal TourX?
H7.
What size is the fog light bulb on a 2018 Buick Regal TourX?
H8.
Can I put LED bulbs in a 2018 Buick Regal TourX?
Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first.
How do I make sure I'm buying the right size?
Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.
Other Buick Regal TourX years
2019 Buick Regal TourX bulb sizes
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