Kia Rio5 Tail Light Bulb Size

The Kia Rio5 tail light utilizes 1157 and 2357 bulb sizes for the rear lighting assembly. Data for the specified components covers the period from 2006 through 2011.

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
2007-2011	1157
2006	2357

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157
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 Kia Rio5 tail light specifications cover model years 2006-2011, with two distinct bulb types used across that span.
The 1157 is the most frequently specified bulb, appearing in the Kia Rio5 across the 2007-2011 model years.
Both the 1157 and 2357 are ANSI-standardized dual-filament bulbs operating on a 12-volt system, with the dual filaments serving separate functions, typically stop and tail lighting.
Both bulb types share the BAY15d bayonet base, a two-pin offset base design that physically distinguishes dual-filament bulbs from single-filament equivalents.
The 1157 is rated at 21W for its high filament and 5W for its low filament, while the 2357 draws 26.9W and 8W respectively, making the 2357 the higher-wattage variant of the two.
The 2006 Rio5 is specified with the 2357 bulb rather than the 1157, which represents a wattage difference of approximately 5.9W on the high filament alone.
Although the 1157 and 2357 share the same BAY15d base and are physically interchangeable in many housings, their differing wattage ratings mean they are not electrically identical replacements for one another.
Substituting a 1157 in a 2006 Rio5 socket designed around the 2357 would result in reduced output, as the lower-wattage filaments of the 1157 would produce less light than the original specification calls for.