Kia Optima Turn Signal Bulb Size
The Kia Optima turn signal requires a bulb with the unique size of PY21W for proper installation and function. Data for the specific component covers the range from 2017 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2018-2020 | 2357NA | P21/5W | Check Price |
| 2017 | 1156NA | PY21W | Check Price |
| 2011-2013 | 2357NA | P21/5W | Check Price |
| 2009-2010 | 2357 | 2357 | Check Price |
| 2005-2008 | 2357NA | P21/5W | Check Price |
| 2003-2004 | 2357 | 2357 | Check Price |
| 2001-2002 | 2357NA | P21/5W | Check Price |
Rear Turn Signal
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2019-2020 | 1156NA | PY21W | Check Price |
| 2017-2018 | 1156 (For Vehicle With LED Tail Lights) | P21W | Check Price |
| 7507 (For Vehicle Without LED Tail Lights) | PY21W | Check Price | |
| 2011-2013 | 1156 | P21W | Check Price |
| 2009-2010 | 1156NA | PY21W | Check Price |
| 2006-2008 | 2357 | 2357 | Check Price |
| 2003-2005 | 1156NA | PY21W | Check Price |
| 2001-2002 | 1156 | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W. | 1156NA | Check Price |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2357 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |