2007-2017 Navigator Rear Door: Standard vs. 'L' Model Fitment Guide

Critical Compatibility Warning: Standard vs. Long Wheelbase ('L') Models

Before purchasing a used rear door assembly, you must confirm which version of the Navigator you own. The easiest way to tell is by looking at the rear side window and the space behind it.

• Standard Navigator: The rear wheel arch almost touches the back edge of the rear passenger door. The rear side glass is shorter.
• Navigator L: There is a noticeable body-colored panel between the back edge of the rear passenger door and the wheel arch. The rear door and its glass are visibly longer.

Many recycled parts listings will specify '119" WB' for the standard model. Always double-check this information and compare it to your vehicle before ordering.

Symptoms of a Failing Rear Door Assembly

Failure of a door assembly is typically related to physical damage or the failure of one of its internal components. Here are the most common symptoms:

1. Damage, Dents, and Rust

This is the most obvious reason for replacement. Collision damage can compromise the door's structural integrity and alignment. Rust, especially along the bottom seams and around the wheel arch, can weaken the metal and become a cosmetic and structural issue.

2. Faulty Door Lock Actuator

The door lock actuator is an electric motor that locks and unlocks the door. When it fails, you may experience:

• The rear door does not lock or unlock with the remote fob or the interior power lock switch.
• The lock operates erratically, sometimes working and sometimes not.
• A buzzing or clicking sound comes from inside the door when you press the lock/unlock button, but the lock doesn't move.

3. Failed Window Regulator

The window regulator is the mechanism that moves the window glass up and down. Symptoms of failure include:

• The window moves very slowly, struggles, or stops partway.
• Grinding, clicking, or popping noises when you operate the window switch.
• The window falls down into the door and will not stay up.
• The window moves crookedly in its track.

4. Wind Noise or Water Leaks

If you hear excessive wind noise or find water inside the vehicle, it could be due to a damaged or compressed weatherstripping seal around the door. It can also be a sign of poor door alignment, often resulting from a previous accident or improper installation.

5. 'Door Ajar' Warning Light

A persistent 'Door Ajar' light on the dashboard, even when the door is fully closed, usually points to a faulty latch sensor. This sensor is integrated into the door latch mechanism. While sometimes related to alignment, it often requires replacing the latch assembly itself.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While there are no major recalls specifically for the rear door structure on the 2007-2017 Navigator, related components have been subject to service actions.

• NHTSA Recall 25V-091: Affects 2015-2017 models for an issue where the LED logo lamps in the exterior mirrors could short circuit. The remedy involves disconnecting the power wire to the lamp. While not a door failure, this is relevant if you are swapping mirrors during a door replacement.
• TSBs for Door Latches: Ford has issued TSBs for similar platforms (like the F-150) regarding door latches freezing or becoming difficult to operate in cold weather due to water intrusion. While not specific to the Navigator, it's a known issue on related Ford products of the era. A TSB for the 2018-2019 generation also addresses latch issues due to water intrusion.

You can check for recalls specific to your vehicle's VIN on the official NHTSA website.

Buying a Used 2007-2017 Navigator Rear Door: A Buyer's Checklist

Buying a used OEM door is often the most cost-effective solution, providing better fit and quality than a cheap aftermarket shell. Here’s what to check.

Step 1: Confirm Wheelbase and Model Year

Re-confirm you are buying for a standard (119" WB) Navigator, not the 'L' model. Also, be aware of minor changes through the 2007-2017 lifespan. The vehicle received a significant facelift for the 2015 model year, which may affect trim, wiring, and handles. It's best to match the part to the correct year range (2007-2014 or 2015-2017).

Step 2: Physical Inspection Checklist

When inspecting the used door, look for:

• Previous Repairs: Look for signs of body filler (Bondo), uneven paint texture, or tape lines on the inside edges. A magnet can help detect areas with thick filler.
• Rust: Check the bottom edge (inside and out) and the lower rear corner near the wheel well. Surface rust can be treated, but rot that goes through the metal is a major red flag.
• Seam Sealer: Check the factory seam sealer along the edges. If it's cracked, missing, or looks different from your other doors, it may indicate a poor-quality repair.
• Dents and Dings: Minor dings may be acceptable, but large dents can be difficult and expensive to repair properly.

Step 3: Match Paint, Trim, and Glass

• Paint Code: Finding a door in the same color saves you thousands in paint and body labor. The paint code is located on the Vehicle Certification Label, usually found in the driver's side door jamb.
• Interior Trim Panel: Navigators came with different interior colors (black, tan, etc.). Ensure the interior panel matches your car, or be prepared to swap your original panel onto the replacement door.
• Glass Tint: Most Navigators have factory privacy tint on the rear windows. Check that the tint on the replacement door's glass matches your existing windows. Look for the small printed markings on the corner of the glass to ensure it's a match.

Step 4: Clarify What's Included

A 'door assembly' can mean different things. Clarify with the seller exactly what is included. Is it a bare shell, or does it come complete with the window glass, window regulator, lock actuator, wiring harness, and interior trim panel? A complete door is often a better value and makes for an easier swap.

Replacement Overview & Difficulty

Replacing a rear door assembly is a moderately difficult job that requires at least two people due to the door's weight and the need for precise alignment.

• Difficulty Rating: 3 out of 5
• Estimated Time: 2-4 hours (if swapping a complete, color-matched door)
• DIY Feasible: Yes, for an experienced DIYer with a helper.

The general process involves disconnecting the battery, removing the interior trim panel, unplugging the wiring harness, supporting the door, unbolting the hinges from the body, and unbolting the door checker. Installation is the reverse, but aligning the new door to get even body gaps and a proper seal is the most challenging part. It often requires multiple small adjustments to the hinge bolts.

Cost Comparison: New vs. Used

Prices can vary significantly based on condition, included components, and color match.

Frequently Asked Questions (FAQ)