2010-2019 Lincoln MKT Spoiler: Brake Light Replacement and Used Buying Guide

Symptoms of a Failing or Damaged Spoiler

Since the spoiler is a cosmetic and structural part, failure symptoms are always visible. There are no associated dashboard warning lights or OBD-II trouble codes for the spoiler itself, though a failed third brake light bulb may trigger a warning on some vehicles.

• Cracked or Broken Housing: Physical impacts from backing into objects or from debris can cause the plastic spoiler housing to crack or break. These cracks can worsen over time and allow water to enter.
• Peeling Paint or Clear Coat: Like any painted body panel, the spoiler is susceptible to sun damage and environmental wear. The clear coat may begin to peel, or the paint may fade and chip, creating a poor appearance.
• Loose Spoiler: The spoiler may feel loose or rattle when you open or close the liftgate. This indicates that the mounting nuts or clips have loosened or broken, which could be a safety hazard if the spoiler detaches while driving.
• Non-Functional Third Brake Light: If the third brake light is out, the issue could be the LED assembly itself. Because the light is mounted to the spoiler, the entire spoiler assembly must be removed to access and replace it.

Buying a Used 2010-2019 Lincoln MKT Spoiler

Given the high cost of a new OEM spoiler, a used part is often the most economical choice. However, careful inspection is key to getting a good part.

Crucial Compatibility Check: The Third Brake Light

The most important thing to understand is that the spoiler (Part No. AE9Z-7444210-A) and the third brake light assembly (Part No. AE9Z13A613B) are technically two separate parts. However, they are almost always sold together on the used market.

• Confirm the Light is Included: Before buying, verify with the seller that the third brake light is included and was functional when removed. Some sellers may remove the light to sell it separately.
• Inspect the Light's Lens: Check photos carefully for any cracks or hazing on the brake light lens. A cracked lens will allow moisture in, causing premature failure of the LED board.

Physical Inspection Checklist

• Check All Mounting Points: The spoiler is held on by several nuts and plastic clips. Inspect the used part to ensure all threaded studs are intact and not stripped, and that the areas where the plastic clips engage are not cracked or broken.
• Look for Hidden Cracks: Examine the entire surface, especially around the mounting points and the base where it meets the liftgate. Small cracks can grow and lead to water leaks or structural failure.
• Assess the Paint Condition: Get a part that matches your vehicle's color code to avoid the extra cost of painting. If a color-matched part isn't available, factor in the cost of a repaint when negotiating the price.

How to Find Your MKT's Paint Code

Your vehicle's paint code is located on the Vehicle Certification Label, found in the driver's side door jamb. Look for a two-character code next to the 'EXT PNT' or 'PAINT' heading. Providing this code to a seller can help confirm a color match.

Known Issues, TSBs, and Recalls

There are no official recalls or Technical Service Bulletins (TSBs) from Lincoln specifically for a failing or detaching spoiler on the 2010-2019 MKT. However, some related issues are worth noting:

• Liftgate Water Leaks: While not directly tied to the spoiler, water leaks into the liftgate and spare tire area are a known issue on some Ford and Lincoln SUVs. When installing a replacement spoiler, it is wise to use new gaskets or apply a thin bead of automotive-grade silicone around the mounting holes to prevent water intrusion.
• Third Brake Light Failure: The third brake light assembly itself can fail. A forum user noted that both their light and a friend's were replaced under warranty, suggesting a potential common point of failure.

Cost of a 2010-2019 Lincoln MKT Spoiler

The cost can vary significantly between new and used options. Aftermarket options specifically for the MKT are not widely available, making used OEM a popular choice.

Installation Guide & Difficulty (Rating: 4/5)

Replacing the MKT spoiler is more complex than it appears and can be challenging for a novice. The primary difficulty lies in releasing hidden plastic clips without breaking them or the spoiler.

Estimated Time: 1.5 - 2.5 hours
Tools Needed: Socket set (14mm 12-point mentioned for a similar model), trim removal tools, needle-nose pliers, possibly a friend to help lift the spoiler off.

Replacement Steps Overview:

1. Remove Interior Liftgate Trim: Carefully pry off the upper interior trim panel on the inside of the liftgate to access the spoiler's mounting hardware.
2. Disconnect Wiring: Unplug the wiring harness for the third brake light.
3. Remove Mounting Nuts: Locate and remove the nuts (reportedly six of them) holding the spoiler studs to the liftgate.
4. Release Hidden Clips: This is the hardest part. In addition to the nuts, several plastic push-in clips secure the spoiler. These must be compressed from inside the access holes in the liftgate structure while applying gentle upward pressure on the spoiler. This can be very difficult and may require specialized tools or significant patience.
5. Swap the Spoiler: Once all fasteners are released, lift the old spoiler off. If you are reusing your third brake light, transfer it to the new spoiler now.
6. Install New Spoiler: Position the new spoiler, ensuring all studs and clips line up with the holes in the liftgate. Press down firmly to engage the clips, then reinstall the nuts from the inside. Do not overtighten.
7. Reconnect and Test: Reconnect the brake light wiring harness and have a helper press the brake pedal to confirm it works before reinstalling the interior trim panel.

Frequently Asked Questions (FAQ)