OE Quality
60-Day Returns

Dorman 645-693 Tail Light Socket - Left Inner or Right Inner
Reliable Tail Light Socket for Ford, Lincoln, and Mercury Vehicles
The Dorman 645-693 tail light socket is designed to provide a secure and durable electrical connection for tail lights on select Ford, Lincoln, and Mercury models. Engineered with quality plastic terminals and a compact 1.5-inch length, this socket ensures proper fitment and reliable performance.
- Compatible with Ford Blackwood, Edge, Explorer, F-250 Super Duty, F-350 Super Duty, Focus, Fusion, Ranger
- Also fits Lincoln LS, MKX, MKZ, and Mercury Mountaineer, Zephyr
- Female (hembra) terminal gender for secure lamp connection
- Durable plastic terminal material resists corrosion and wear
- Compact overall length of 1.5 inches for easy installation
- Includes one lamp socket per package
Product Details and Specifications
The Dorman 645-693 tail light socket is a direct replacement part designed to restore proper electrical connectivity for tail light bulbs. Its female terminal design ensures a snug fit with compatible lamp terminals, reducing the risk of loose connections or electrical faults. The plastic terminal material offers resistance to environmental factors such as moisture and corrosion, which can degrade metal terminals over time. With an overall length of 1.5 inches, this socket fits neatly within the tail light assembly housing of various Ford, Lincoln, and Mercury vehicles.
Common Applications and Problem Resolution
- Restores tail light functionality when the socket is cracked or damaged
- Eliminates flickering or intermittent tail light issues caused by poor electrical contact
- Replaces corroded or worn terminals that can cause tail light failure
- Ensures proper electrical connection after collision repairs or tail light assembly replacement
- Prevents electrical shorts due to damaged or degraded socket components
Installation Notes and Tips
- Disconnect the vehicle battery before installation to avoid electrical shock
- Remove the tail light assembly carefully to access the socket
- Ensure the female terminal aligns correctly with the bulb terminals for a secure fit
- Inspect wiring harness for damage before installing the new socket
- Test tail light operation after installation to confirm proper function
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 645-693 tail light socket undergoes quality checks to ensure durability and reliable electrical performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.
This part fits 100 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2016 | Ford | F-250 Super Duty | N/A | |
| 2016 | Ford | F-350 Super Duty | N/A | |
| 2015 | Ford | F-250 Super Duty | N/A | |
| 2015 | Ford | F-350 Super Duty | N/A | |
| 2014 | Ford | F-250 Super Duty | N/A | |
| 2014 | Ford | F-350 Super Duty | N/A | |
| 2013 | Ford | F-250 Super Duty | N/A | |
| 2013 | Ford | F-350 Super Duty | N/A | |
| 2012 | Ford | F-250 Super Duty | N/A | |
| 2012 | Ford | F-350 Super Duty | N/A | |
| 2011 | Ford | F-250 Super Duty | N/A | |
| 2011 | Ford | F-350 Super Duty | N/A | |
| 2011 | Ford | Focus | N/A | |
| 2011 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2011 | Ford | Ranger | N/A | |
| 2010 | Ford | Edge | N/A | |
| 2010 | Ford | Explorer | N/A | |
| 2010 | Ford | F-250 Super Duty | N/A | |
| 2010 | Ford | F-350 Super Duty | N/A | |
| 2010 | Ford | Focus | N/A | |
| 2010 | Ford | Fusion | Left Inner | |
| 2010 | Ford | Fusion | Right Inner | |
| 2010 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2010 | Ford | Ranger | N/A | |
| 2010 | Lincoln | MKX | N/A | |
| 2010 | Lincoln | MKZ | Left Inner | |
| 2010 | Lincoln | MKZ | Right Inner | |
| 2010 | Mercury | Mountaineer | N/A | |
| 2009 | Ford | Edge | N/A | |
| 2009 | Ford | Explorer | N/A | |
| 2009 | Ford | F-250 Super Duty | N/A | |
| 2009 | Ford | F-350 Super Duty | N/A | |
| 2009 | Ford | Focus | N/A | |
| 2009 | Ford | Fusion | Left Inner | |
| 2009 | Ford | Fusion | Right Inner | |
| 2009 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2009 | Ford | Ranger | N/A | |
| 2009 | Lincoln | MKX | N/A | |
| 2009 | Lincoln | MKZ | Left Inner | |
| 2009 | Lincoln | MKZ | Right Inner | |
| 2009 | Mercury | Mountaineer | N/A | |
| 2008 | Ford | Edge | N/A | |
| 2008 | Ford | Explorer | N/A | |
| 2008 | Ford | F-250 Super Duty | N/A | |
| 2008 | Ford | F-350 Super Duty | N/A | |
| 2008 | Ford | Focus | N/A | |
| 2008 | Ford | Fusion | Left Inner | |
| 2008 | Ford | Fusion | Right Inner | |
| 2008 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2008 | Ford | Ranger | N/A | |
| 2008 | Lincoln | MKX | N/A | |
| 2008 | Lincoln | MKZ | Left Inner | |
| 2008 | Lincoln | MKZ | Right Inner | |
| 2008 | Mercury | Mountaineer | N/A | |
| 2007 | Ford | Edge | N/A | |
| 2007 | Ford | Explorer | N/A | |
| 2007 | Ford | Fusion | Left Inner | |
| 2007 | Ford | Fusion | Right Inner | |
| 2007 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2007 | Lincoln | MKX | N/A | |
| 2007 | Lincoln | MKZ | Left Inner | |
| 2007 | Lincoln | MKZ | Right Inner | |
| 2007 | Mercury | Mountaineer | N/A | |
| 2006 | Ford | Explorer | N/A | |
| 2006 | Ford | Fusion | Left Inner | |
| 2006 | Ford | Fusion | Right Inner | |
| 2006 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2006 | Lincoln | LS | Left Inner | |
| 2006 | Lincoln | LS | Right Inner | |
| 2006 | Lincoln | Zephyr | Left Inner | |
| 2006 | Lincoln | Zephyr | Right Inner | |
| 2006 | Mercury | Mountaineer | N/A | |
| 2005 | Ford | Explorer | N/A | |
| 2005 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2005 | Lincoln | LS | Left Inner | |
| 2005 | Lincoln | LS | Right Inner | |
| 2005 | Mercury | Mountaineer | N/A | |
| 2004 | Ford | Explorer | N/A | |
| 2004 | Ford | Ranger | N/A | Terminal Gender: Female |
| 2004 | Lincoln | LS | Left Inner | |
| 2004 | Lincoln | LS | Right Inner | |
| 2004 | Mercury | Mountaineer | N/A | |
| 2003 | Ford | Explorer | N/A | |
| 2003 | Ford | Ranger | N/A | |
| 2003 | Lincoln | LS | Left Inner | |
| 2003 | Lincoln | LS | Right Inner | |
| 2003 | Mercury | Mountaineer | N/A | |
| 2002 | Ford | Explorer | N/A | |
| 2002 | Ford | Ranger | N/A | |
| 2002 | Lincoln | Blackwood | N/A | |
| 2002 | Lincoln | LS | Left Inner | |
| 2002 | Lincoln | LS | Right Inner | |
| 2002 | Mercury | Mountaineer | N/A | |
| 2001 | Ford | Ranger | N/A | |
| 2001 | Lincoln | LS | Left Inner | |
| 2001 | Lincoln | LS | Right Inner | |
| 2000 | Ford | Ranger | N/A | |
| 2000 | Lincoln | LS | Left Inner | |
| 2000 | Lincoln | LS | Right Inner | |
| 1999 | Ford | Ranger | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.