The Hyundai Elantra Coupe tail light requires a bulb size of 2357 for proper illumination. Data for the specified lighting component covers the range from 2013 to 2014.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Hyundai Elantra Coupe uses two distinct bulb types across its tail light positions for the 2013-2014 model years: the 168 for inner tail lights and the 2357 for outer tail lights.
The 168 bulb follows the ANSI standard applicable in the US and Canada. It is a miniature wedge bulb in the T10 form factor, rated at 12V and 4.9W, making it a low-wattage lamp suited for secondary lighting positions such as inner tail lights.
The 2357 bulb also conforms to the ANSI standard for the US and Canada. It uses a BAY15d bayonet base and carries dual filaments, operating at 12V with a high-intensity filament rated at 26.9W and a low-intensity filament rated at 8W. This dual-filament design allows it to serve both tail light and brake light functions within a single bulb.
The 2357 is a brighter variant of the 1157 bulb. While the two share the same BAY15d base and are physically similar, the 2357 draws more wattage on its primary filament, which means substituting one for the other may produce differences in light output and could affect circuit load.
For the 2014 Hyundai Elantra Coupe, the inner tail light position specifies the 168 bulb only on vehicles without projector-type headlamps, indicating that headlamp configuration is a relevant factor in determining the correct inner tail light bulb for that year.
The outer tail light on the 2014 model carries an additional date-specific entry noting fitment from 10/28/2013, which reflects a mid-production-year specification that applies the 2357 bulb to vehicles built on or after that date.