Suzuki Grand Vitara Back Up Light Bulb Size

The Suzuki Grand Vitara back up light requires a 7440 bulb size for proper installation and function within the rear lighting assembly. Available data covers the range from 1999 through 2013 for the specified vehicle components.

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

Bulb Size by Year Range

Years	Bulb Size
1999-2013	7440

Bulb Specifications

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

Other Locations

Additional Notes

The Suzuki Grand Vitara uses the 7440 bulb size for its back up light across the 1999-2013 model years.
The 7440 is a single-filament wedge bulb, meaning it produces light from one filament only and is held in its socket by the wedge-shaped base rather than by pins or a bayonet fitting.
The 7440 follows the T20 form factor, which refers to the bulb's tubular shape and overall size classification within the wedge bulb family.
The 7440 operates at 12 volts and 21 watts, which are standard ratings for automotive reverse light applications.
The 7440 designation is an ANSI standard recognized in both the United States and Canada, indicating a standardized specification for the bulb's electrical and physical characteristics.
Because the 7440 is single-filament, it is not interchangeable with the 7443, which shares the same T20 wedge form but carries a dual-filament design. Substituting a 7443 in a 7440 socket is not a direct equivalent swap.