The APDTY 756112 turn signal, parking light, and license plate lamp bulb socket is a direct OE replacement for Ford part number 2U5Z-13411SA. This socket assembly fits rear left or rear right positions on select 2003-2016 Ford, Lincoln, and Mercury vehicles, restoring proper electrical connection when the original socket becomes corroded, melted, or damaged. Replacing a failed bulb socket eliminates intermittent turn signal operation, non-functional parking lights, and bulb-out warning messages.
Key Takeaways
- Replaces Ford OE part number 2U5Z-13411SA for turn signal, parking light, or license plate applications
- Fits rear left or rear right positions on numerous 2003-2016 Ford, Lincoln, and Mercury models—verify exact fitment using the compatibility chart
- Restores reliable electrical connection to eliminate intermittent lighting and bulb-out warnings
- Plastic housing may be brown or pink depending on application—match to original for correct fit
- Direct replacement part requiring basic socket twist-out installation
Buy APDTY 756112 directly from APDTY
What Does a Turn Signal and Parking Light Bulb Socket Do?
The bulb socket serves as the electrical connection point between your vehicle's wiring harness and the turn signal, parking light, or license plate bulb. The socket holds the bulb securely in position while providing constant electrical contact through internal metal terminals. When you activate the turn signal or parking lights, current flows through the socket terminals to illuminate the bulb.
Over time, heat cycling, moisture intrusion, and electrical arcing degrade the socket's plastic housing and metal contacts. Corrosion on the terminals creates high resistance, causing poor bulb illumination, flickering lights, or complete circuit failure. In severe cases, excessive resistance generates heat that melts the socket housing, creating a safety hazard and potentially damaging the vehicle's wiring harness.
What Are the Symptoms of a Failed Bulb Socket?
A failing turn signal or parking light socket produces several recognizable symptoms:
- Intermittent operation: The light flickers, works occasionally, or fails entirely, especially when driving over bumps
- Bulb-out warning: Dashboard warning light illuminates even after installing a new bulb
- Hyperflash turn signals: Turn signal blinks rapidly due to poor electrical connection
- Burned or melted socket: Visible heat damage, discoloration, or melted plastic around socket housing
- Corroded terminals: Green, white, or black corrosion visible on socket contacts
- Poor bulb retention: Bulb sits loosely in socket or falls out completely
Diagnosing a socket problem is straightforward: if the bulb tests good and still doesn't work, and the fuse is intact, the socket is the likely culprit. Inspect the socket for corrosion, heat damage, or loose terminals before condemning other electrical components.
Which Vehicles Does APDTY 756112 Fit?
The APDTY 756112 socket is compatible with select model years only of the following Ford, Lincoln, and Mercury vehicles. Match the part to your original socket image and verify exact fitment using the live compatibility chart on the product page:
| Make | Model | Years |
|---|---|---|
| Ford | Crown Victoria | 2004-2007 |
| Ford | Escape | 2004-2014 |
| Ford | Explorer (includes Sport Trac) | 2003-2010 |
| Ford | Five Hundred | 2005-2007 |
| Ford | Flex | 2009-2016 |
| Ford | Focus | 2005-2007 |
| Ford | Freestyle | 2005-2007 |
| Ford | F-150 (includes Heritage) | 2004 |
| Ford | F-250, F-350, F-450, F-550 | 2003-2013 |
| Ford | Fiesta | 2011-2013 |
| Ford | Fusion | 2006-2010 |
| Lincoln | MKZ | 2007-2012 |
| Lincoln | Navigator | 2004-2006 |
| Lincoln | Town Car | 2004-2008 |
| Lincoln | Zephyr | 2006 |
| Mercury | Mariner | 2005-2006 |
| Mercury | Milan | 2006-2011 |
| Mercury | Montego | 2005-2007 |
| Mercury | Mountaineer | 2003-2005 |
Important: This socket fits select vehicles within these ranges. Not all trim levels or configurations use this socket design. The plastic housing may be brown or pink depending on application. Always compare the socket shown in the product images to your original part before ordering, and consult the live fitment tool to confirm compatibility with your specific VIN.
APDTY 756112 Specifications and Part Numbers
This bulb socket is manufactured as a direct replacement for the factory Ford component, ensuring proper fit and electrical performance:
| Specification | Details |
|---|---|
| APDTY Part Number | 756112 |
| Replaces OE Number | Ford 2U5Z-13411SA, 2U5Z13411SA |
| Position | Rear Left or Rear Right |
| Application | Turn Signal, Parking Light, or License Plate Lamp |
| Housing Color | Brown or Pink (varies by application) |
| Condition | Brand New |
| Warranty | Backed by APDTY warranty (see product page for terms) |
The socket design includes integrated electrical terminals that match OE connector configuration, allowing plug-and-play installation without wire splicing or modification.
How Do You Replace a Turn Signal Bulb Socket?
Replacing a bulb socket is a straightforward repair that most DIYers can complete in 15-30 minutes with basic tools. The exact procedure varies by vehicle, but the general process follows these steps:
- Disconnect the battery: Remove the negative battery cable to prevent shorts during the repair
- Access the socket: Depending on location, you may need to remove the tail light assembly, access panel, or trim piece. Some sockets are accessible from inside the trunk or cargo area
- Remove the old socket: Twist the socket counterclockwise (typically 1/4 turn) and pull it from the light housing. Disconnect the wiring harness plug
- Inspect the harness: Check the mating connector for corrosion or damage. Clean with electrical contact cleaner if needed
- Install the new socket: Plug the wiring harness into the new APDTY 756112 socket until it clicks. Insert a known-good bulb
- Test before reassembly: Reconnect the battery and test turn signals, parking lights, and hazard lights to verify proper operation
- Complete installation: Insert the socket into the housing and twist clockwise to lock. Reinstall any removed trim or assemblies
Safety note: Always use the correct bulb wattage specified for your vehicle. Oversized bulbs generate excessive heat that can damage the new socket. If the original socket showed signs of melting, inspect the wiring harness for damage or excessive resistance that could damage the replacement.
Why Choose APDTY 756112 Over Generic Aftermarket Sockets?
APDTY engineers this socket to meet or exceed OE specifications, ensuring reliable long-term performance:
- OE-equivalent fit: Designed to match Ford 2U5Z-13411SA dimensions and mounting configuration for proper alignment and secure installation
- Heat-resistant materials: High-temperature plastic housing resists melting and deformation under normal operating conditions
- Quality terminals: Corrosion-resistant electrical contacts maintain consistent connection over the socket's service life
- Direct replacement: No modifications, adapters, or wire splicing required—install exactly like the original factory socket
- Application-tested: Validated for specific Ford, Lincoln, and Mercury applications listed in the compatibility chart
Generic sockets may use inferior plastics that melt under heat or terminals that corrode rapidly, leading to premature failure. The APDTY 756112 provides reliable restoration of your vehicle's lighting system at a fraction of dealer part cost.
Frequently asked questions
Will APDTY 756112 fit both the driver and passenger side?
Yes, this socket is designed for rear left or rear right positions. The same part number fits either side on compatible vehicles. Verify the socket design matches your original by comparing to the product images.
Why does my socket have a brown housing while the APDTY part shows pink?
Ford used both brown and pink plastic housings for this socket design across different model years and applications. Both colors are functionally identical. The APDTY 756112 housing color may vary—what matters is that the socket design, terminals, and mounting configuration match your original.
Can a bad socket cause my turn signals to flash too fast?
Yes. Corroded or damaged socket terminals create high electrical resistance, reducing current flow to the bulb. The vehicle's flasher module interprets this as a burned-out bulb and increases flash rate (hyperflash). Replacing the faulty socket typically restores normal flash rate without additional repairs.
Do I need to replace the bulb when installing a new socket?
Not necessarily, but inspect the old bulb carefully. If the socket failed due to corrosion or melting, the bulb may have heat damage or compromised terminals even if it still illuminates. Installing a fresh bulb with the new socket ensures reliable operation and eliminates the risk of troubleshooting a marginal bulb later.
The APDTY 756112 turn signal, parking light, and license plate bulb socket restores reliable electrical connection on 2003-2016 Ford, Lincoln, and Mercury vehicles when the original socket fails due to corrosion, heat damage, or worn terminals. This direct replacement for Ford part number 2U5Z-13411SA installs in minutes using the factory connector, eliminating intermittent lighting and bulb-out warnings. Verify your vehicle's compatibility using the live fitment chart, match the socket design to your original, and restore full lighting functionality with this proven OE-equivalent replacement. Order APDTY 756112 today and eliminate lighting issues with a quality socket engineered for long-term reliability.