The Kia Rio side marker utilizes a 12961 bulb size for the lighting component. Data for the specific bulb requirements covers the period from 2009 through 2023.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. It is the front and rear side marker bulb for the Kia Rio in 2023 and for 2019-2020 models equipped with halogen capsule headlamps.
The W2.1x9.5d base on the 12961 bulb is a wedge-type base where the glass envelope itself acts as the retaining element, requiring no separate locking mechanism for installation.
The halogen capsule headlamp condition noted for 2019-2020 indicates that the 12961 fitment applies specifically to that headlamp configuration, meaning trim or equipment level affects side marker bulb selection on those model years.
The 168 is an ANSI-standard T10 miniature wedge bulb rated at 12V and 4.9W. It serves as the front side marker for the Kia Rio across 2006-2009 and as the rear side marker for 2001-2002.
Although both the 12961 and the 168 share the T10 form factor and wedge base style, their wattage ratings differ slightly at 5W and 4.9W respectively, and they carry different designation standards, one being a Philips part number and the other an ANSI standard.
The 2357NA is an ANSI-standard dual-filament bulb with a BAY15d bayonet base, rated at 12V with a 26.9W main filament and an 8W secondary filament. Its natural amber glass produces a yellow-orange output without requiring an amber-tinted lens or housing.
The BAY15d base on the 2357NA features two offset pins at different heights, a design that prevents incorrect single-filament substitutes from being seated in the socket.
The 2357NA is specified as the front side marker bulb for the Kia Rio in 2010-2011 and in 2001-2002. Its dual-filament construction and significantly higher wattage distinguish it from the single-filament T10 types used in other model years.
The rear side marker position on the Kia Rio uses only two bulb types across the listed years: the 168 for 2001-2002 and the 12961 for 2019-2020 and 2023, whereas the front side marker position draws from all three bulb types across its listed years.
The 2357NA and the 168 are both governed by ANSI standards applicable in the United States and Canada, while the 12961 is defined by a manufacturer part number rather than a regional standards body designation.