2017-2020 Acura MDX Front Door Shell: Interchange, Component Swaps, and Replacement Guide
This guide covers the critical details for replacing a 2017-2020 Acura MDX front door, including full 2014-2020 interchangeability and the process of transferring your original parts.
- The front door shell is interchangeable across all 2014-2020 Acura MDX models, expanding used part options.
- You are buying a bare shell; all internal components (wiring, glass, lock, speaker, etc.) MUST be transferred from your old door.
- Replacement doors require professional painting to match your vehicle, which is a significant part of the total cost.
- There are no major aftermarket door shells available, making used OEM the most cost-effective alternative to new OEM.
Understanding the 2017-2020 MDX Front Door
The most important thing to understand when buying a replacement front door for a 2017-2020 Acura MDX is that you are almost always buying a bare door shell. This means you will receive the outer metal panel and the inner frame structure, but none of the internal components. All of the working parts from your original door must be carefully removed and transferred to the replacement shell.
Pro Tip: The front door shells for the third-generation Acura MDX are the same for all model years from 2014 to 2020. This significantly widens your options when searching for a used part, as a door from a 2014 or 2015 model will fit your 2018 or 2020 MDX perfectly.
Symptoms of a Failing or Damaged Door
Most door assembly replacements are due to collision damage. However, issues with internal components can sometimes be so extensive that replacing the entire assembly with a good used unit is more efficient.
- Visible Damage: Dents, deep scratches, rust, or punctures from an accident are the most common reasons for replacement.
- Poor Alignment: A door that is difficult to close, sags, or doesn't sit flush with the body when closed may have bent hinges or a tweaked frame from an impact. This can also cause significant wind noise at speed.
- Door Will Not Lock or Unlock: While often caused by a faulty door lock actuator, widespread electrical issues could stem from a damaged wiring harness inside the door or at the flexible jamb between the door and the body.
- Window or Mirror Malfunctions: If the power window, mirror adjustments, and locks all fail simultaneously, it often points to a problem with the main door wiring harness rather than individual components.
Buying a Used 2017-2020 MDX Front Door: What to Inspect
A used OEM door is often the best value, offering factory fit and structural integrity that cheap aftermarket parts can't match. There are currently no major aftermarket manufacturers producing full door shells for this vehicle. Here’s what to check before you buy.
- Inspect for Hidden Repairs: Look at the inside of the door and along the seams. Check for any signs of body filler (often called 'Bondo'), non-factory welds, or cracked seam sealer. Run a small magnet along the flat surfaces; it won't stick to areas with thick body filler.
- Check for Rust: Pay close attention to the bottom edge of the door, both inside and out. Water can get trapped here and cause rust from the inside out. Also check around the door handle and window trim.
- Verify Interchange (2014-2020): As confirmed by owners and parts catalogs, any front door shell from a 2014-2020 Acura MDX will physically bolt on. The only minor difference noted is that doors for models with rear sunshades have small tack-welded plates for the shade clips. If your replacement door doesn't have these and your vehicle does, they can be carefully removed from your old door and transferred.
- Assess the Included Parts: Many used doors are sold as complete assemblies with the glass, regulator, and wiring still inside. While you will likely transfer your own parts to ensure compatibility with your vehicle's trim (Base, Tech, A-Spec, Advance), a complete door from a low-mileage vehicle can be a source of good backup components.
Warning: You MUST transfer the internal components from your original door. Parts like the main wiring harness can vary between trim levels (Base, Tech, A-Spec, Advance). To ensure all your power windows, locks, mirrors, and speakers work correctly, use the harness that came with your vehicle.
Known Issues, Recalls, and TSBs
While there are no major recalls or Technical Service Bulletins (TSBs) for the physical structure of the 2017-2020 MDX front doors, there are common issues with the components housed within them.
- Door Lock Actuator Failure: A common problem is a failing lock actuator, which can cause a single door to not respond to the key fob or interior lock switch. This is a replaceable internal part.
- Wiring Harness Fatigue: Though more documented on the previous generation, the wires in the flexible rubber boot between the door and the car body can fatigue and break over time from repeated opening and closing. This can cause a wide range of electrical failures.
- Vehicle Recalls: The 2017-2020 MDX has been subject to other recalls, including for the connecting rod bearings in the engine and for passenger seat weight sensors. These do not pertain to the door assembly itself, but it is wise to check your vehicle's VIN on the Acura recall lookup site to ensure all safety campaigns are completed.
Cost Comparison: New vs. Used MDX Door Shell
Replacing a door involves the cost of the part, painting, and labor. A used OEM door shell offers significant savings over a new part from the dealer.
| Part Type | Estimated Cost | Notes |
|---|---|---|
| New OEM Shell | $1,300 - $1,950 | This is for the bare metal shell only, unpainted. |
| Used OEM Assembly | $750 - $1,300 | Price for a complete used door. Often the best value, but shipping can be expensive if not sourced locally. |
| New Aftermarket Shell | Not Available | Currently, no major aftermarket brands produce a full replacement door shell for this model. |
| Shop Labor (Swap) | $250 - $450 | Cost for a body shop to swap all components from your old door to the new one and align it. |
| Shop Labor (Paint) | $400 - $800+ | Cost to paint the new shell to match your vehicle. May include blending paint onto the adjacent fender or rear door for a perfect match. |
Installation Overview & Difficulty
Swapping an MDX door assembly is a complex job best suited for experienced DIYers or a professional body shop. The difficulty lies in the careful transfer of numerous delicate parts.
- Difficulty Rating: 4 out of 5
- Process: The basic steps involve disconnecting the battery, removing the interior trim panel, carefully unplugging every electrical connector, disconnecting the handle and lock rods, removing the window glass, unbolting the door check and hinges, and finally removing the door. The entire process is then reversed to transfer all components into the new shell and install it on the vehicle.
- Alignment is Key: After the new door is bolted on, it must be carefully aligned at the hinges and striker to ensure it closes smoothly, seals properly, and has even body gaps. Poor alignment can cause wind noise or water leaks.
Frequently Asked Questions (FAQ)
Will a door from a 2015 MDX fit my 2019 MDX?
Yes, the basic door shell is the same for all third-generation Acura MDX models from 2014 through 2020. You can confidently use a door from any of these years, but you must transfer your original internal electronics and wiring harness to ensure compatibility with your vehicle's features.
Does a replacement door need to be painted?
Yes. All new shells come unpainted, and any used door will need to be professionally painted to match your vehicle's specific color code. To get a perfect match, a body shop will often need to 'blend' the new paint onto the adjacent panels, like the front fender or rear door.
What parts do I have to transfer from my old door?
You must transfer everything. This includes: the window glass, window motor and regulator, the main wiring harness, the door lock actuator, the interior trim panel, the exterior handle and lock cylinder, the side mirror, the speaker, and all weatherstripping and seals.
Can I replace just the outer door skin?
While some manufacturers offer outer 'door skins', this is a highly advanced repair that requires cutting off the old panel and bonding or welding on the new one. For the Acura MDX, it is almost always easier and more cost-effective to replace the entire door shell assembly.
Technical Specifications
OEM Part Numbers: 67010-TZ5-A00ZZ 67010-TZ5-A10ZZ 67010-TZ5-A80ZZ 67010-TZ5-A90ZZ 67050-TZ5-A00ZZ 67050-TZ5-A10ZZ 67050-TZ5-A80ZZ 67050-TZ5-A90ZZ
The part is a bare, unpainted door shell. All internal mechanisms and electronics must be transferred from the original door. Fits all 2014-2020 Acura MDX trim levels, but requires using the vehicle's original wiring harness.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Acura MDX: