
PIAA 19615 9005 (HB3) Xtreme White Plus
$64.57
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Used for: Headlight Bulb High Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
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
Used for: Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb, Map Light Bulb
Used for: Trunk or Cargo Area Light
Used for: Trunk or Cargo Area Light
This 2008 Subaru Outback bulb guide helps you verify the correct bulb size by lighting position, so you can replace a failed lamp with confidence. Because trim level, market, and lighting package can change the fitment, it is best to match the bulb to the exact location on the vehicle rather than relying on a single universal part number.
Use this page as a quick reference for common exterior and interior bulbs on the 2008 Subaru Outback. Whether you are changing a headlight, tail light, reverse light, or dome lamp, checking the bulb chart by position makes it easier to find the right replacement before you buy.
Fitment can vary between trims, body styles, and regional specifications, so always compare the listed bulb size with the bulb already installed in your vehicle. Halogen bulbs and LED replacements are not always direct swaps, especially for headlights and signal lamps, where beam pattern, heat, and warning lights can matter. If you are considering an aftermarket LED conversion, make sure it is compatible with the housing and legal for road use in your area. For the most reliable result, remove the old bulb first and confirm the base type and markings before ordering.
The high beam bulb size listed for the 2008 Subaru Outback is 9005.
The front turn signal light bulb is listed as 3457A.
The parking light bulb size is 3457A, which is also shared with the front side marker light on this page.
The front side marker light bulb is 3457A.
The rear turn signal light bulb is 7440A.
Both the brake light bulb and tail light bulb are listed as 7443R.
The back up reverse light bulb is 921.
The license plate light bulb sizes listed are 168 and 917.
Both the dome light and map light use DE3175 bulbs.
The trunk or cargo area light can use 2825 or 98, depending on the exact setup.
The center high mount stop light bulb is listed as LED.
The rear side marker light bulb is 168NA.
The courtesy light bulb is DE3021, but availability can depend on the specific trim or lighting package.
Because the 2008 Subaru Outback can vary by trim, market, and lighting package, checking the installed bulb helps confirm the exact fitment and avoid ordering the wrong part.