Kia Forte5 Tail Light Bulb Size

The Kia Forte5 tail light requires a 2357 bulb size for proper installation and function within the rear lighting assembly. Data for the specified component covers the range from 2014 through 2018.

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
2014-2018	2357 (With Halogen Capsule Headlamps)

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.	2357

Other Locations

Additional Notes

The 2357 bulb is the sole tail light bulb type listed across all Kia Forte5 model years covered in these specifications, spanning 2014-2018.
The 2357 follows the ANSI standard recognized in both the United States and Canada, making it a widely available bulb type in North American markets.
As a dual-filament bulb, the 2357 serves two lighting functions within a single unit, operating at separate wattages of 26.9W for the brighter filament and 8W for the dimmer filament.
The 2357 operates at 12 volts, consistent with the standard electrical systems found in passenger vehicles.
The 2357 uses a BAY15d bayonet base, which is an offset twin-pin mount. The offset pin placement is a physical safeguard against incorrect installation orientation.
The 2357 is a brighter variant of the 1157 bulb. Although both share the BAY15d base, the higher wattage of the 2357 means the two types are not interchangeable without accounting for the difference in light output.
All five model years in the specifications carry the qualifier "With Halogen Capsule Headlamps," indicating that the 2357 tail light fitment is tied to a specific headlamp configuration rather than applying universally to all Forte5 trims or builds.