
PIAA 15223 H3 Xtreme White Plus
$67.15
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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam
Used for: Headlight Bulb High Beam and Low 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(Compare to original - Option 2)
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
Used for: Trunk or Cargo Area Light
This 2003 Subaru Legacy bulb size page is designed to help you quickly verify the correct replacement bulb by lighting position. Whether you are changing a headlight, tail light, interior lamp, or license plate light, the bulb chart below organizes the common fitments for this model so you can match the right size before you buy.
Because the 2003 Legacy was offered with different body styles and lighting packages, bulb sizes can vary by location and trim. Use the position-specific listings to confirm the exact bulb for your sedan or wagon and avoid mixing up similar-looking bulbs that are not interchangeable.
For best results, compare the bulb listed on this page with the one already installed in your vehicle, especially if your Legacy has an aftermarket headlamp assembly, upgraded fog lights, or a previous owner’s conversion. Trim and package differences can change the fitment, and halogen bulbs should be matched carefully if you are replacing them with LED alternatives or other aftermarket options. If a socket or lens has been changed before, the installed bulb is the safest reference, so remove the old bulb and check its number before ordering a replacement.
The low beam headlight bulb listed for the 2003 Subaru Legacy is H1.
The high beam bulb listed for this model is 9005.
Yes, some listings show a combined high beam and low beam setup using 9007, so it is important to confirm your headlamp style before buying.
The front fog light bulb listing includes H3C and H3, depending on the lighting setup.
The sedan brake light bulb is listed as 3157R.
The sedan tail light bulb is listed as 3157R.
The sedan rear turn signal bulb is listed as 3157.
The wagon rear turn signal bulb is listed as 7440.
The sedan back up light bulb is listed as 3156.
The wagon back up light bulb is listed as 1156.
The license plate light bulb listings include 168 and 917.
Both the dome light and map light are listed as DE3175.
The center high mount stop light bulb is listed as 921 for one setup, and 912 for the wagon listing.
The parking light bulb and front side marker light bulb are both listed as 1157A.
Check the installed bulb, the housing style, and whether the car is a sedan or wagon. Trim level, market differences, and prior repairs can all affect fitment.