
PIAA 19615 9005 (HB3) Xtreme White Plus
$64.57
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Used for: Headlight Bulb High Beam
Used for: Headlight Bulb Low Beam
Used for: Back Up Light Bulb(Sedan)
Used for: Back Up Light Bulb(Wagon)
Used for: Brake Light Bulb(Sedan), Tail Light Bulb(Sedan)
Used for: Brake Light Bulb(Wagon), Tail Light Bulb(Wagon)
Used for: Center High Mount Stop Light Bulb
Used for: Center High Mount Stop Light Bulb(Wagon), Trunk or Cargo Area Light(Wagon)
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Turn Signal Light Bulb Front(Compare to original - Option 2)
Used for: Turn Signal Light Bulb Front(Compare to original - Option 1)
Used for: Turn Signal Light Bulb Rear(Sedan)
Used for: Turn Signal Light Bulb Rear(Wagon)
Used for: Courtesy Light Bulb(Compare to original - Option 1)
Used for: Courtesy Light Bulb(Compare to original - Option 1)
Used for: Courtesy Light Bulb(Compare to original - Option 2)
Used for: Dome Light Bulb, Map Light Bulb
Used for: Trunk or Cargo Area Light(Sedan)
Used for: Trunk or Cargo Area Light(Sedan)
This 2004 Subaru Outback bulb size guide is designed to help you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Because Subaru used different lighting setups depending on body style and market, it is smart to confirm each bulb location separately instead of assuming one size fits every lamp.
Use this page as a quick reference for the most common exterior and interior bulbs on the 2004 Outback, including headlights, tail lights, brake lights, turn signals, license plate lights, dome lights, and cargo-area lighting. The listed bulb sizes can help you narrow down the correct fit for your specific lamp and avoid unnecessary returns.
Fitment can vary on the 2004 Outback depending on trim, package, wagon or sedan body style, and whether the car still has original halogen lamps or an aftermarket conversion. If you are switching to LED bulbs, make sure the bulb base matches and check for polarity, heat management, and possible hyperflash on turn signals. Some aftermarket LED or HID conversions may also require extra adapters, resistors, or housings designed for the conversion. Before ordering, it is always best to compare the bulb in the car with the size listed here, since the installed bulb may differ from what you expect after years of previous repairs.
The listed low beam headlight bulb for the 2004 Subaru Outback is H1.
The high beam headlight bulb listed for this model year is 9005.
The center high mount stop light bulb listed for the 2004 Subaru Outback is 921. On some wagon applications, the center high mount stop light is listed as 912, so verify your body style before purchasing.
The license plate light bulb options listed are 168 and 917.
Both the dome light and map light are listed as DE3175 for this year and model.
Two courtesy light options are listed: 194 or 7441 for one fitment, and DE3021 for another compare-to-original fitment. Checking the installed bulb is the safest way to confirm which one your car uses.
For sedan applications, the trunk or cargo area light is listed as 2825 or 98. For wagon applications, the trunk or cargo area light is listed as 912.
The rear turn signal bulb is listed as 3157 for sedan models and 7440 for wagon models.
For sedan models, both the brake light and tail light are listed as 3157R. For wagon models, both the brake light and tail light are listed as 1157R.
The back up light bulb is listed as 3156 for sedan models and 1156 for wagon models.
The front turn signal bulb is listed as 1156A for one compare-to-original fitment and 1157A for another. The parking light and front side marker light are also listed as 1157A.
The 2004 Subaru Outback used different lighting layouts depending on body style, so rear lamps, cargo-area lamps, and some stop or signal bulbs may differ between sedan and wagon versions.
You can use LED replacements if they are compatible with the socket and lighting circuit, but you should confirm fitment, beam pattern, and any load-related issues before buying. For exterior signal bulbs, some LED upgrades may need resistors or other changes to work correctly.