Subaru Legacy Luggage Compartment Bulb Size

The Subaru Legacy luggage compartment utilizes a 194 bulb size for the interior lighting component located within the rear storage area. Data for the specified vehicle covers the range from 2018 through 2023.

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
2021-2023	194
2018-2019	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The T10 miniature wedge bulb, designated 194 under ANSI standardization, is the specified luggage compartment bulb for the Subaru Legacy across the listed model years.
The 194 bulb operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of interior and auxiliary lighting applications.
The T10 designation refers to the bulb's tubular wedge form factor, which uses a wedge-style base rather than a pin or bayonet mount, securing the bulb through friction contact with the socket.
The ANSI 194 standard applies across both the United States and Canada, meaning the specification is consistent for North American market vehicles.
The 194 bulb size is shared across the 2018-2019 and 2021-2023 Legacy model years, indicating socket compatibility is consistent across those production periods.
The T10 wedge base is a widely used form factor in automotive interior lighting, and the 194 rating specifies the exact electrical and physical characteristics within that family, meaning not all T10 bulbs are interchangeable with a 194-rated unit.