3 Years Available
Buick Regal Tourx Light Bulb Sizes
Complete bulb size reference for the Buick Regal Tourx from 2018 to 2020. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
Our database lists the same H7 low beam bulb for Buick regal-tourx entries from 2018 to 2020. Confirm your trim and factory lighting package before buying.
Year Range
2018 – 2020
3 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| High Beam | H7(2018–2020) | 3 years | Consistent |
| Low Beam | H7(2018–2020) | 3 years | Consistent |
| Fog Light | H11(2018–2020) | 3 years | Consistent |
| Reverse Light | 921(2018–2020) | 3 years | Consistent |
| Turn Signal Rear | 921(2018–2019) 7440(2020–2020) | 3 years | Changed |
| Trunk Light | 175(2018–2019) | 2 years | Consistent |
Common Regal Tourx Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Buick Regal-Tourx from 2018 to 2020, covering 3 model years. Select your year below for a complete position-by-position bulb chart.
No, the Buick Regal-Tourx has used the H7 low beam bulb consistently across all 3 model years in our database. Any year in the 2018–2020 range uses the same bulb.
The Buick Regal-Tourx uses a H7 bulb for the low beam (same bulb serves both high and low beam via dual filament), and a H11 for the fog lights. Select your year below for the exact fitment chart.
Yes. The Buick Regal-Tourx uses a H7 low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.