Evobus S 407 Turn Signal Bulb Size

The Evobus S 407 front turn signal uses a 7440 bulb size for replacement applications. The replacement chart covers vehicle production spanning 2012 to 2017.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

Years	Bulb Size
2012-2017	7440

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.	7440

Other Locations

Additional Notes

The Evobus S 407 front turn signal uses the 7440 bulb across the 2012-2017 model years.
The 7440 is a single-filament wedge bulb classified under the T20 form factor, meaning it has a wedge-style base rather than a bayonet or screw mount.
The 7440 operates at 12 volts and draws 21 watts, which is consistent with standard automotive turn signal power requirements.
The 7440 designation follows the ANSI standard used in the United States and Canada, distinguishing it from ECE-standard bulb classifications used in other markets.
Because the 7440 is single-filament, it serves a dedicated function and is not interchangeable with dual-filament T20 variants such as the 7443, which carries a second filament for combined stop and turn signal applications.