The Yamaha FZ-07 front turn signal requires a 7443 bulb size while the rear turn signal uses a 7440 bulb size. The replacement chart covers 2015 through 2017 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha FZ-07 uses two distinct T20 wedge bulb types across its front and rear turn signal positions for the 2015-2017 model years.
The T20 designation refers to a wedge-base bulb with a 20mm glass envelope, a form factor common in automotive and motorcycle lighting applications.
Front turn signals on the FZ-07 (2015-2017) take the 7443 bulb, which is a dual-filament type rated at 12V with a 21W primary filament and a 5W secondary filament.
The dual-filament design of the 7443 allows a single bulb to serve two lighting functions simultaneously, typically a brighter signal flash and a dimmer running or parking light.
Rear turn signals on the FZ-07 (2015-2017) take the 7440 bulb, which is a single-filament type rated at 12V, 21W.
Both the 7443 and 7440 are ANSI-standardized bulbs recognized in the United States and Canada, meaning they conform to defined electrical and physical specifications.
Although the 7443 and 7440 share the same T20 wedge base and physical housing profile, they are not interchangeable due to the filament count difference.
Installing a 7440 in a 7443 socket would result in the loss of the secondary filament function, as the single-filament bulb cannot replicate the dual-filament behavior required at the front position.