The Toyota Yaris brake light utilizes a 7443 bulb size for the specific lighting components located at the rear of the vehicle. Data for the bulb specifications covers the range from 2013 to 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota Yaris uses the 7443 bulb for brake lighting across the 2013-2014 and 2018-2019 model years, covering both the general brake and outer brake positions.
The 7443 is an ANSI-standardized bulb type, meaning its specifications are governed by a formal industry standard recognized across the United States and Canada.
This bulb follows the T20 wedge form factor, which refers to a wedge-shaped base that seats directly into a socket without requiring a separate bayonet or screw mechanism.
The 7443 operates on a 12-volt system and carries a dual-filament design rated at 21W and 5W, where the higher wattage filament activates under braking and the lower wattage filament serves a secondary function such as running light duty.
Because the Toyota Yaris uses the same 7443 bulb in both the general brake and outer brake positions, a single bulb type covers both sockets within the same model year.
The dual-filament nature of the 7443 means it is not interchangeable with single-filament bulbs of similar physical size, as substituting a single-filament type would result in the loss of one lighting function.