2003 Subaru Outback 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: Priority audit queued.

Audit priority: High traffic wagon/SUV.

Priority audit queued

This high-traffic vehicle page is in the manual review queue. Current values are structured database entries and should still be verified before purchase.

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.

2003 Subaru Outback Bulb Size Chart

Position	Bulb Code	Aliases	Trim / Package	Factory Type	Confidence	Review	Notes	Shop
Low Beam	H1	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon eBay
High Beam	9005	HB3	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon eBay
Fog Light	9006	HB4	If equipped / package-dependent	Halogen	High	Pending	If equipped; fog light packages can vary by trim.	Amazon eBay
Brake Light	912	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Side Marker	1157NA	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Turn Signal Front	1156NA	—	Multiple listed options	Halogen	Medium	Pending	Multiple listed options; confirm the bulb in your housing.	Amazon
Turn Signal Rear	1157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Reverse Light	1156	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Dome Light	DE3175	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
License Plate	168	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Map Light	DE3175	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Parking Light	1157NA	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Trunk Light	2825	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Tail Light	3157	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon

2003 Subaru Outback Fitment Notes

Across the 2000-2022 production range, our database shows changes in the listed Reverse Light, Turn Signal Rear, Side Marker positions. Use the chart above for this 2003 model, then confirm the bulb number in your vehicle 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 2003 Subaru Outback's bulbs compare to other years?

The 2003 Subaru Outback uses the same bulbs as the 2002 model.

The 2004 model switched to a different bulb configuration.

This bulb configuration covers the 2000–2003 model years. ← 2002 2004 →

Finding the best installation guide...

Other Outback Years

2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2002 2001 2000

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Frequently Asked Questions

Our database lists H1 for the 2003 Subaru Outback low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.

Our database lists 9005 for the 2003 Subaru Outback high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 2003 Subaru Outback can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed H1 size against the bulb in the housing before choosing a replacement or upgrade.

Our database lists 9006 for the 2003 Subaru Outback fog light position. Fog lights are often package-dependent, so verify that your vehicle is equipped with factory fog lights before ordering.

The 2003 Subaru Outback uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

LED upgrades are available for many H1 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as H1, and verify the factory housing before buying.

Our database has a fog light entry for the 2003 Subaru Outback: 9006. Fog lights may still depend on trim or equipment package.

No — the 2003 Subaru Outback uses the same bulb sizes as the 2002 model. This configuration has been consistent across the 2000–2003 generation.

The 2003 Subaru Outback is the last year in the 2000–2003 generation to use the H1 bulb for the low beam headlight.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed H1 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 H1 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 2003 Subaru Outback.

2003 Subaru Outback Bulb Size Chart

2003 Subaru Outback Bulb Size Chart

2003 Subaru Outback Fitment Notes

How do the 2003 Subaru Outback's bulbs compare to other years?

Other Outback Years

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H1 Comparisons

Frequently Asked Questions

What is the low beam headlight bulb size for a 2003 Subaru Outback?

What is the high beam headlight bulb size for a 2003 Subaru Outback?

Why are my 2003 Subaru Outback headlights dim?

Which bulb fits the 2003 Subaru Outback fog light?

Is the 2003 Subaru Outback single or dual beam?

Can I install LED bulbs on my 2003 Subaru Outback?

Does the 2003 Subaru Outback have fog lights?

Did the 2003 Subaru Outback change headlight bulb sizes from the previous year?

Is the 2003 Subaru Outback the first or last year to use H1 bulbs?

How do I change the headlight on a 2003 Subaru Outback?

Are LED headlights legal for a 2003 Subaru Outback?

How much does it cost to replace 2003 Subaru Outback headlights?

What is the difference between halogen and LED for a 2003 Subaru Outback?