The Most Common Headlight Bulb Sizes
Across 3,346 US vehicle configurations in the GarageDex database, the most common low-beam headlight is H11 (29.7%), followed by LED and H7. A growing share of newer cars use sealed LED units instead of a replaceable bulb.
Low-beam bulb codes by share of vehicles
| Rank | Bulb code | Share of vehicles | Vehicles |
|---|---|---|---|
| 1 | H11 | 29.7% | 995 |
| 2 | LED | 15.9% | 532 |
| 3 | H7 | 10.2% | 342 |
| 4 | 9006 | 6.8% | 227 |
| 5 | H13 | 5.8% | 194 |
| 6 | D3S | 5.2% | 175 |
| 7 | 9003 | 4.4% | 148 |
| 8 | D2S | 3.6% | 122 |
Data as of October 2026, from 3,346 verified vehicle configurations. Compiled by Matan B., who runs GarageDex. Download the table as CSV.
You can use these numbers anywhere. If you do, please link to this page. Suggested citation:
GarageDex, "The Most Common Headlight Bulb Sizes," data as of October 2026. https://garagedex.com/guides/most-common-headlight-bulb-types/
Methodology
Counts reflect distinct year/make/model configurations with a known low-beam bulb in the GarageDex database, each checked against a cited fitment source. High beams and signal bulbs use different codes. New to bulb codes? Halogen vs LED vs HID.
Want your exact bulb sizes? Look up your headlight bulbs →