Skip to main content

2004 Scion xA Bulb Size Chart

Bulb sizes may vary by trim, factory lighting package, region, production date, and previous modifications. Verify the bulb number on your existing bulb before buying.

Last database update: May 2026. Manual review status: Not yet manually reviewed.

Verify before buying: check the bulb number printed on your existing bulb, confirm your trim and factory lighting package, and review the seller's fitment notes.
Disclosure: We may earn a commission from links marked Affiliate. Unmarked retailer links may be plain search links. Always verify bulb fitment before purchasing.

2004 Scion xA Bulb Size Chart

PositionBulb CodeAliasesTrim / PackageFactory TypeConfidenceReviewNotesShop
Low Beam9003HB2 / H4Standard listingHalogenHigh
Pending

Dual-beam bulb; verify factory housing and lighting package.

AmazoneBay
Brake Light168—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Side Marker7443—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Turn Signal Front2827—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Turn Signal Rear7440—Multiple listed optionsHalogenMedium
Pending

Multiple listed options; confirm the bulb in your housing.

Amazon
Dome LightDE3175—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
License Plate168—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Map LightDE3175—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Parking Light168—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Reverse Light921—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Trunk LightDE3175—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Fog Light9006HB4If equipped / package-dependentHalogenHigh
Pending

If equipped; fog light packages can vary by trim.

AmazoneBay
Tail Light7443CK—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
High Beam9003HB2 / H4Standard listingHalogenHigh
Pending

Dual-beam bulb; verify factory housing and lighting package.

AmazoneBay

2004 Scion xA Fitment Notes

Our database shows the same listed bulb sizes for the Scion xA across the 2004 to 2006 range. Still verify your trim, lighting package, and the bulb number in the housing before buying.

Known fitment limitations

  • factory HID or LED packages may use different parts
  • fog lights may depend on equipment package
  • aftermarket headlight assemblies may use different bulbs
  • regional models and production-date splits may differ

See an incorrect bulb size? Submit a correction.

How do the 2004 Scion xA's bulbs compare to other years?

The 2005 model continues with the same bulb sizes.

This bulb configuration covers the 2004–2006 model years. 2005 →

Finding the best installation guide...

Other xA Years

20062005

More from Scion

FR-SiAiMiQtCxBxD

Other Vehicles That Use 9003 / HB2 / H4 Bulbs

2023 Hyundai Venue2023 Kia Rio2022 Hyundai Accent2021 Toyota Tundra2020 Ford Figo2020 Honda Fit

Frequently Asked Questions

Our database lists 9003 for the 2004 Scion xA low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.

Our database lists 9003 for the 2004 Scion xA high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 2004 Scion xA can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed 9003 size against the bulb in the housing before choosing a replacement or upgrade.

Our database lists 9006 for the 2004 Scion xA fog light position. Fog lights are often package-dependent, so verify that your vehicle is equipped with factory fog lights before ordering.

The 2004 Scion xA uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

LED upgrades are available for many 9003 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as 9003 / HB2 / H4, and verify the factory housing before buying.

Our database has a fog light entry for the 2004 Scion xA: 9006. Fog lights may still depend on trim or equipment package.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed 9003 low beam size on the existing bulb or owner's manual, then follow the service procedure for your exact trim.

Rules for LED headlight retrofits vary by location and by housing type. Avoid products that create glare or lack road-use compliance claims, and check local requirements before using an LED conversion on public roads.

Replacement cost depends on bulb technology, brand, and labor access. Common halogen 9003 replacements are usually cheaper than LED conversion kits. Check seller fitment notes before comparing prices.

Halogen bulbs and LED replacements differ in output, heat behavior, beam pattern, and electronics. A correct bulb code does not guarantee a correct LED beam pattern, so verify physical fit and seller compatibility notes for the 2004 Scion xA.