The Toyota FJ Cruiser front side marker uses a 1157 bulb size while the rear side marker requires a 7443 bulb size. The replacement chart contains bulb size specifications across 2007 to 2014 vehicle production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota FJ Cruiser uses two distinct bulb types across its side marker positions: the 1157 for the front and the 7443 for the rear, across all model years from 2007-2014.
Both the 1157 and 7443 are ANSI-standardized bulbs recognized in the US and Canada, meaning they conform to defined electrical and physical specifications within those markets.
Both bulb types operate on a 12-volt system and share an identical wattage rating of 21W/5W, indicating a dual-filament design where one filament draws 21 watts and the other draws 5 watts.
The 1157 uses a BAY15d bayonet base, a two-pin offset base that physically prevents incorrect insertion by staggering the pin positions.
The 7443 is a T20 wedge-type bulb, which uses a plastic wedge base rather than a metal bayonet, making it physically incompatible with the 1157 socket despite sharing the same wattage output.
Because the 1157 and 7443 use fundamentally different base types, one cannot serve as a direct substitute for the other, even though their electrical characteristics are otherwise identical.
The front side marker position on the Toyota FJ Cruiser (2007-2014) exclusively uses the 1157 bulb, while the rear side marker position exclusively uses the 7443 for the same model year span.