The Suzuki Grand Vitara side marker utilizes a 194 bulb size for illumination purposes. Data for the specific component covers the period from 1999 through 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Suzuki Grand Vitara uses two distinct bulb types across its side marker positions: the 194 for the front and the 7443 for the rear, each belonging to a different wedge bulb family with notably different power ratings.
The 194 bulb is a T10 miniature wedge type rated at 12V and 3.78W. Its low wattage reflects its role as a small, continuously illuminated position lamp rather than a signaling light.
The 7443 bulb is a T20 dual-filament wedge type rated at 12V with a 21W/5W output. The dual-filament design allows one filament to serve a brighter function and the other a dimmer, always-on function within the same housing.
Both the 194 and 7443 are classified under the ANSI standard and are recognized in both the United States and Canada, meaning they conform to a shared North American specification for automotive lighting.
The Suzuki Grand Vitara (1999-2005) takes the 194 bulb in the front side marker position across all seven model years covered in the specifications.
The rear side marker position on the Grand Vitara uses the 7443 bulb across the 2006-2013 model years.
The T10 and T20 designations refer to the tubular bulb body width, with T10 being narrower than T20. These two sizes are not interchangeable, and substituting one for the other is not physically compatible with the intended socket.
The significant wattage difference between the 194 (3.78W) and the 7443 (21W/5W) reflects fundamentally different electrical loads. Installing a higher-wattage bulb in a circuit designed for a lower-wattage one risks overloading the socket or wiring.
The dual-filament nature of the 7443 means the rear side marker socket on the 2006-2013 Grand Vitara is wired to support two separate circuits. A single-filament T20 variant, such as the 7440, would not activate both circuits and is not a direct replacement.