Honda Civic Si Bulb Size by Year
The 2022-2026 Honda Civic Si has factory LED headlights, so there is no headlight bulb to replace. 2016-2021 models use an H11 low beam and a 9005 high beam, and earlier years are in the table below.
Headlight bulbs by model year
| Model years | Low beam | High beam | Fog | Buy |
|---|---|---|---|---|
| 2022-2026 | LED | LED | LED | |
| 2016-2021 | H11 | 9005 | H8 | Shop H11 |
| 2006-2015 | 9006 | 9005 | H11 | Shop 9006 |
| 2004-2005 | 9006 | 9005 | - | Shop 9006 |
| 2002-2003 | H4 | H4 | - | Shop H4 |
LED means the headlight is a sealed LED unit from the factory, so there is no bulb to buy. Some trims differ from the base car, so check the bulb you are removing. Shop links go to Amazon, and we may earn a commission at no extra cost to you. Open your exact year below for every bulb position and sources.
Every Civic Si year
Sources. The bulb code for 23 of 25 model years is checked against a cited source, most often xenonpro.com - 2016-2021 Honda Civic bulb sizes, civicx.com - 10th gen civic light bulb size guide and xenonpro.com - 2006-2011 Honda Civic bulb sizes. Each year page lists its own sources.
Last verified 2026-06-19. Maintained by Matan B., who runs GarageDex. How we verify.