The Toyota Matrix brake component utilizes a 7443 bulb size for the specific lighting application required for the rear of the vehicle. Data provided covers the range from 2003 to 2013 for the specified automotive lighting information.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 7443 bulb is the dominant brake bulb type across the Toyota Matrix lineup, appearing in both the general brake and outer brake positions across the 2003-2013 model years.
The 7443 is a dual-filament wedge bulb in the T20 form factor, rated at 12V with a 21W/5W output. The dual-filament design allows a single bulb to serve both the brake and tail light functions at different wattages.
The 921 bulb is a single-filament wedge bulb in the T15 form factor, rated at 12V and 16W. It is a smaller and lower-wattage unit than the 7443, and the two types are not interchangeable despite both using wedge-style bases.
The center high mount stop light on the Toyota Matrix (2003-2008) uses the 921 bulb, which is a physically distinct fitment from the outer brake position on the same vehicle.
Both the 7443 and 921 are ANSI-standardized bulbs, meaning the specifications conform to a defined standard used across the United States and Canada.
The 2013 outer brake position carries a production date qualifier of "To 08/2013," indicating the 7443 fitment applies only to vehicles produced up to that point within the model year.
The 2008 outer brake position similarly carries a "To 01/2008" qualifier, meaning the 7443 specification for that row is limited to early production units of that model year.