The Honda Fit brake light utilizes a 7443 bulb size for the specific lighting component located at the rear of the vehicle. Data for the bulb specifications covers the range from 2007 to 2012.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Fit uses the 7443 bulb as its brake bulb across the 2007-2012 model years, making it the dominant bulb type in these specifications.
The 7443 is a dual-filament wedge bulb of the T20 form factor, rated at 12V with a 21W high filament and a 5W low filament, conforming to the ANSI standard used in the US and Canada.
The dual-filament design of the 7443 allows it to serve two lighting functions within a single housing, which is why it is suited to combined brake and tail light positions.
The 7440 bulb is specified for the Center High Mount Stop Light position on the Honda Fit for the 2007, 2008, and 2020 model years.
The 7440 is a single-filament wedge bulb of the same T20 form factor as the 7443, rated at 12V and 21W, also conforming to the ANSI standard used in the US and Canada.
Although the 7443 and 7440 share the T20 wedge form factor and are physically similar in size, the 7443 carries two filaments while the 7440 carries only one, and these two types are not interchangeable without functional consequences.
Installing a 7440 in a socket designed for a 7443 would result in the loss of one lighting function, since the single-filament 7440 cannot replicate the dual-filament behavior of the 7443.
The Outer Brake position on the Honda Fit specifies the 7443 bulb for the 2007-2012 model years, consistent with the general brake bulb specification across the same period.