Subaru Outback Cargo Box Bulb Size

The Subaru Outback cargo box utilizes a bulb with a unique size of 912 for the interior lighting area. Data for the specific bulb requirements covers the range from 2021 to 2022.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2021-2022	912

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.	912

Other Locations

Additional Notes

The 912 is the cargo box bulb size for the Subaru Outback across the 2021-2022 model years.
The 912 bulb follows the ANSI standard, meaning it meets the electrical and dimensional specifications defined by the American National Standards Institute for use in the US and Canadian markets.
It uses a wedge-style base, designated T15, which refers to a tubular bulb body approximately 15/8 of an inch wide that seats by friction rather than by a bayonet or screw mechanism.
The 912 operates at 12 volts and 12 watts, placing it in the lower wattage range typical of interior and cargo lighting applications.
The 912 is a variant of the 921 bulb. Both share the same T15 wedge base and 12-volt rating, but the 921 draws 16.8 watts, making the two bulbs electrically distinct despite their physical similarity.