The Buick Verano uses a 7443 bulb for the rear stopping light component located at the back of the vehicle. Data for the specified lighting equipment covers the period from 2012 through 2017.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Buick Verano uses the 7443 bulb as its primary brake bulb across the full 2012-2017 model year range.
The 7443 is an ANSI-standardized dual-filament wedge bulb in the T20 form factor, rated at 12V with a 21W/5W output, where the higher wattage filament serves the brake function and the lower wattage filament serves a secondary lighting function.
Its dual-filament design makes the 7443 suitable for combined stop and tail light applications, which is a common arrangement in rear lighting assemblies.
For 2012-2016 model years, the Buick Verano brake lighting is divided into inner and outer brake positions, each requiring a different bulb type.
The outer brake position on the 2012-2016 Verano uses the 7443 bulb, consistent with the general brake specification across all model years.
The inner brake position on the 2012-2016 Verano uses the 12961, a single-filament miniature wedge bulb in the T10 form factor with a W2.1x9.5d base, rated at 12V and 5W.
The 12961 is a Philips part number designation rather than an ANSI industry-wide standard number, which is a relevant distinction when sourcing equivalent replacement bulbs from other manufacturers.
The T10 form factor of the 12961 is physically smaller than the T20 form factor of the 7443, and the two bulbs are not interchangeable due to differences in base type, size, and wattage.