Lincoln MKX Turn Signal Bulb Size
Lincoln MKX front turn signal bulbs use 7440NA, 7443NA, or 7444NA sizes, while rear turn signal bulbs use 4157 size. The replacement chart covers 2007 through 2018 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2017-2018 | 7440NA (With Auto-Leveling HID H/ L) |
| 7443NA (With HID Headlamps) | |
| 2016 | 7440NA (With Auto-Leveling HID H/ L) |
| 7444NA (With HID Headlamps) | |
| 2014-2015 | 3457NA |
| 2013 | 3357NA |
| 2011-2012 | 3457NA |
| 2007-2010 | 3157NA |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2007-2010 | 4157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W. | 7440NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W. | 7443NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W. | 7444NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3157NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 4157 |