Subaru BRZ Tail Light Bulb Size

The Subaru BRZ tail light requires a bulb size of 12961 for the rear lighting assembly. Data for the specified component covers the range from 2014 to 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 Type	Shop
2023	12961	Check Price
2014-2015	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

Other Locations

Additional Notes

The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts with a 5-watt output.
The T10 bulb uses a W2.1x9.5d base, a wedge-style base type that relies on friction fit rather than a locking mechanism to secure the bulb in its socket.
The Subaru BRZ uses the 12961 bulb size for its tail lights across the 2014-2015 and 2023 model years.
At 5 watts, the 12961 is a low-output bulb typical of secondary lighting positions such as tail, parking, or side marker functions rather than primary stop or turn signal duties.
The W2.1x9.5d base designation is an IEC-standardized base code, where W2.1 refers to the base width in millimeters and 9.5d refers to the pin spacing, making cross-brand compatibility dependent on matching this base specification precisely.
The T10 designation refers to the bulb's tubular envelope size, with the numeral indicating a width of 10 eighths of an inch, a standard used widely in automotive wedge bulb classification.