The Most Common Headlight Bulb Sizes

Name: Most common low-beam headlight bulb sizes across US vehicles
Creator: GarageDex
License: https://garagedex.com/about/

Across 3,151 US vehicle configurations in the GarageDex database, the most common low-beam headlight is H11 (30.2%), 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

H1130.2% · 952

LED17% · 536

H710.2% · 320

90066.6% · 209

H136.1% · 193

90034.4% · 140

D3S4.3% · 134

90123.8% · 119

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.

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