The Kia Spectra5 front turn signal requires a 1156 or 2357NA bulb size, while the rear turn signal uses a 1156NA bulb size. The replacement chart covers vehicle production years spanning 2005 to 2009 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kia Spectra5 front turn signal uses the 1156 bulb for 2007-2009 and the 2357NA bulb for 2005-2006, representing a change in bulb type across the model's production run.
The 1156 is a single-filament bulb operating at 12V and 21W, fitted with a BA15s bayonet base, and meets the ANSI standard applicable in the US and Canada.
The 2357NA used in the 2005-2006 Kia Spectra5 front turn signal is a dual-filament bulb, rated at 12V with separate filament wattages of 26.9W and 8W, and uses a BAY15d bayonet base.
The BAY15d base of the 2357NA is not interchangeable with the BA15s base of the 1156, as the two base types differ in pin offset configuration, making cross-substitution between the 2005-2006 and 2007-2009 front turn signal bulbs physically incompatible.
The 2357NA incorporates natural amber glass, which produces an amber signal output directly from the bulb rather than relying on a colored lens.
The rear turn signal on the Kia Spectra5 uses the 1156NA across all model years from 2005-2009, indicating no change in rear turn signal fitment throughout the vehicle's production span covered by these specifications.
The 1156NA shares the same BA15s bayonet base, 12V operating voltage, and 21W rating as the standard 1156, but differs in that it features natural amber glass.
Because the 1156 and 1156NA share the same BA15s base and electrical ratings, the base is physically compatible, though substituting one for the other would affect the color output of the signal light depending on the lens color of the housing.
All three bulb types listed in these specifications, the 1156, 2357NA, and 1156NA, conform to ANSI standards recognized in the US and Canada.
The dual-filament design of the 2357NA, with its higher-wattage and lower-wattage filaments, is typically associated with combined functions such as turn signal and parking light within a single bulb housing.