The Toyota Echo brake light utilizes a 7443 bulb size for the specific lighting component located at the rear of the vehicle. Data for the specified bulb covers the range from 2000 to 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota Echo uses the 7443 bulb for both the general brake light position and the outer brake light position across all model years from 2000-2005.
The 7443 is a dual-filament wedge bulb of the T20 type, rated at 12V with a wattage split of 21W and 5W, conforming to ANSI standards used in the US and Canada.
The dual-filament design of the 7443 allows it to serve two distinct lighting functions within a single housing, which is why it is suited to brake light applications that also require a lower-intensity running light.
The center high mount stop light on the Toyota Echo uses the 921 bulb across all model years from 2000-2005, a different type from the outer brake positions.
The 921 is a single-filament wedge bulb of the T15 type, rated at 12V and 16W, also conforming to ANSI standards used in the US and Canada.
Because the 7443 and 921 are different bulb types with different wattage ratings and filament configurations, they are not interchangeable with each other despite both being wedge-base bulbs.