What size bulb is in a 2013 Honda Civic?

For most 2013 Honda Civic models with factory halogen headlights, the low-beam bulb size is H11, the high-beam/daytime running light (DRL) bulb is 9005 (HB3), and the fog light bulb (if equipped) is H11. Other exterior and interior bulb sizes vary by function and trim; a detailed, model-wide reference is outlined below along with tips to verify your exact fit.

Headlight and fog light sizes

Across the 2013 Civic lineup (Sedan, Coupe, Si, HF, and most Hybrid/Natural Gas trims in North America), Honda equipped halogen projector/reflector units rather than factory HID. That means standard halogen service bulbs are used and are widely available. The DRL typically runs the high-beam filament at reduced power.

• Low-beam headlight: H11 (12V, 55W)
• High-beam/DRL: 9005 (HB3, 12V, 60W)
• Fog light (if equipped): H11 (12V, 55W)

These sizes are consistent for Sedan and Coupe, including Si. Always match wattage and connector type, and avoid touching halogen glass with bare fingers to prevent hot-spot failures.

Exterior bulb chart (typical for 2013 Civic)

The exterior lighting beyond the headlights is generally shared across trims. Where lenses are clear, use amber-coated bulbs (marked “A” or “NA”) for turn/marker functions to remain street legal. The list below reflects common fitments for the 2013 model year.

• Front turn signal/parking: 7443 or 7444NA (amber, dual-filament)
• Front side marker/position: 168 (also sold as 194/T10 wedge)
• Rear tail/brake (stop/tail): 7443 (dual-filament, red lens)
• Rear turn signal: 7440A (amber, single-filament)
• Reverse (backup): 921 (T15 wedge)
• Rear side marker: 168 (194/T10 wedge)
• License plate: 168 (194/T10 wedge)
• Center high-mount stop lamp (third brake): LED assembly on many trims; replace as an assembly if not serviceable as a bulb

Some regional or trim-specific variations exist (for example, amber-versus-clear lenses and LED third-brake configurations), but the socket families above are the ones most commonly specified for the 2013 Civic.

Interior bulb sizes (common fitments)

Interior lamps can vary slightly by body style and trim package. The wedge-base “168/194” and 31 mm festoon formats are the most prevalent in 2013 Civic cabins.

• Map/reading lights: 168 (194/T10 wedge)
• Dome light (ceiling): 31 mm festoon (DE3175/3175)
• Vanity mirror lights: 31 mm festoon (common: 6418/3175; verify length)
• Glove box/trunk: 168 (194/T10 wedge)

Because small interior housings can differ by supplier and trim, confirm festoon length (measured end-cap to end-cap) and wedge clearance before ordering LED upgrades.

Coupe vs. Sedan, Si, and Hybrid notes

Bulb families for the 2013 Civic are largely uniform across body styles and trims, including Si performance models and most Hybrid/Natural Gas variants. Where differences occur, they typically involve:

• Fog lights: not all trims are equipped; when present they use H11.
• Third brake lamp: some trims use an integrated LED strip instead of a replaceable bulb.
• Market differences: Canadian DRL behavior uses the 9005 high-beam filament at reduced voltage; bulb size remains the same.

If your car has aftermarket headlamp assemblies or regional equipment differences, verify the socket type stamped on the bulb or in the owner’s manual.

How to confirm your bulb size

While the sizes above cover the vast majority of 2013 Civics, it’s smart to confirm before you buy—especially if your car has had lighting repairs or modifications. Use the quick checks below.

1. Check the owner’s manual: see the “Lights” or “Specifications” section for bulb types and wattage.
2. Inspect the existing bulb: the part code (e.g., H11, 9005, 7443, 168, 921) is usually printed on the base.
3. Use the VIN at a dealer: parts counters can pull the exact bulb specification for your build.
4. Cross-reference reputable bulb catalogs: match both bulb family and wattage; avoid mixing incompatible bases.

Taking a minute to verify safeguards against fitment issues and ensures proper beam pattern and electrical load.

Upgrade tips and cautions

Many owners upgrade to longer-life halogens or quality LEDs. Proper selection and installation protect your wiring and maintain safe illumination.

• Use CANbus-friendly LEDs where applicable to avoid hyperflash (turn signals) or bulb-out warnings.
• Maintain beam pattern: if upgrading headlights to LED, choose H11/9005 kits with correct focal point and use projector-safe designs to reduce glare.
• Mind heat and wattage: do not exceed factory wattage on halogens; excessive heat can damage housings.
• Replace in pairs for headlights and turn/brake lamps to ensure color and brightness match.

Well-chosen replacements can improve visibility and longevity without compromising safety or legality.

Summary

The 2013 Honda Civic typically uses H11 low-beam, 9005 (HB3) high-beam/DRL, and H11 fog light bulbs, with common exterior sizes like 7443 (tail/brake), 7440A (rear turn), 921 (reverse), and 168/194 wedges for markers and license lamps. Interior lighting generally uses 168/194 wedges and a 31 mm festoon for the dome. Verify your exact trim and existing bulbs before purchase, especially for third brake and interior festoon lengths.

Does the H11 fit a Honda Civic?

The 9005 high beam H11 low beam H11 fog light halogen headlight bulbs combo kit are fully compatible with Honda Civic 2016 2017 2018 2019 2020.

Is H11 a bulb size?

The H11-size bulb is the most popular type used on modern vehicles and can be found in the 2012-2015 Toyota Tacoma, the 2019+ Ford Ranger, and the 2012-2016 Honda Civic Si, among many others.

How to replace headlight bulb on a 2013 Honda Civic?

So push down on this tab. You should be able to remove this connector. And turn this guy counterclockwise. And the bulb comes right out. There you go the bulb number is H11. So we got new bulbs. Here.

What headlight bulb for 2013 Honda Fit?

Honda Fit (2013-2014) Bulb Size Chart

Headlights (High Beam and Low Beam)	H4 (9003 HB2)
Front Fog Lights (2013)	H11 (H8 H9)
Automatic Transmission Indicator Light	T5
Brake Light (Outer) (2013)	7443 (7440)
Brake Light (Rear)	7443 (7440)