Kia Rio5 Side Marker Bulb Size

The Kia Rio5 side marker requires a bulb size of 12961 for the specific lighting application. Data for the requested information covers the range from 2009 to 2009.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Side Marker

Years	Bulb Size
2010-2011	2357NA
2006-2009	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W.	2357NA
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Kia Rio5 front side marker position uses two distinct bulb types across its model years: the 2357NA for 2010-2011 and the 168 for 2006-2009.
The 2357NA is a dual-filament bulb, meaning it contains two separate filaments within a single envelope, each rated at a different wattage. Its two filaments operate at 26.9W and 8W on a 12V circuit.
The 2357NA uses a BAY15d bayonet base, which is an offset-pin bayonet mount. The offset pin positions prevent the bulb from being inserted in the wrong orientation, ensuring the correct filament is assigned to each circuit.
The natural amber glass of the 2357NA produces its amber output through the glass coating itself rather than through a clear bulb paired with an amber lens, which is reflected in the "NA" suffix of its designation.
The 168 is a T10 miniature wedge bulb. The wedge base design relies on the bulb's glass pinch to hold it in the socket, with no separate metal base or pins involved.
The 168 is a single-filament bulb rated at 4.9W on a 12V circuit, making it significantly lower in wattage than the 2357NA used in later Rio5 model years.
Both the 2357NA and the 168 conform to ANSI standards applicable in the United States and Canada, classifying them as standardized replacements within the North American market.
The 2357NA and the 168 use physically incompatible base types, a bayonet mount versus a wedge base, making them non-interchangeable between the 2006-2009 and 2010-2011 model years of the Kia Rio5 front side marker position.