Yamaha XSR700 front turn signal bulbs measure 7443 in size, while rear turn signal bulbs measure 7440, with each bulb type specified for its respective location. The replacement chart covers 2018 through 2020 model years and details bulb size specifications across the vehicle production range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha XSR700 uses two distinct T20 wedge bulb types across its turn signal positions, with the front and rear positions each requiring a specific filament configuration.
The 7443 bulb is a dual-filament T20 wedge type rated at 12V with a 21W/5W output, where the two wattage values correspond to its two separate filaments operating independently.
The 7440 bulb is a single-filament T20 wedge type rated at 12V and 21W, carrying only one active filament unlike its 7443 counterpart.
Both the 7443 and 7440 are ANSI-standardized bulb types recognized in the US and Canadian markets.
The front turn signals on the Yamaha XSR700 require the 7443 bulb across the 2018-2020 model years.
The rear turn signals require the 7440 bulb across the 2018-2020 model years.
Although the 7443 and 7440 share the same T20 wedge base form factor, they are not interchangeable due to the difference in filament count, and substituting one for the other in a given socket would result in incorrect or non-functional operation.