For the 2004 Subaru Outback, the low-beam headlight uses an H1 bulb, while the high beam uses a 9005. Confirm the existing bulb and socket before ordering, especially for lighting positions with more than one listed option.
- Front turn signals: Compare the original bulb to determine whether the vehicle uses 1156A or 1157A.
- Reverse lights: Sedan models use 3156; wagon models use 1156.
- Brake and tail lights: Sedan models use 3157R, while wagons use 1157R.
- Rear turn signals: The sedan uses 3157 and the wagon uses 7440.
- Center stop light: 921 is listed, with 912 also specified for the wagon.
- Interior lighting: Dome and map lights use DE3175. Courtesy lighting may be 194, 7441, or DE3021, so compare the original bulb.
- License plate lighting: 168 or 917 may apply. Trunk lighting varies by body style, with 2825 or 98 listed for the sedan and 912 for the wagon.