The APDTY 035271 rear hatch window glass hinge pair restores proper operation to the flip-up rear glass on 2002-2005 Ford Explorer and Mercury Mountaineer 4-door SUVs. This complete set includes both the left and right hinges that attach the rear window glass to the main liftgate, allowing independent opening of the glass section without raising the entire tailgate. If your rear glass won't stay open, sags, or exhibits broken pivot points, these replacement hinges solve the problem without requiring expensive dealer assemblies.
Key Takeaways
- Includes both left and right rear hatch glass hinges in one complete set
- Fits 2002-2005 Ford Explorer 4-door and 2002-2005 Mercury Mountaineer 4-door models only—does NOT fit Explorer Sport models
- Replaces Ford OE part numbers 2L2Z78420A68AA and 2L2Z-78420A68-AA
- Restores independent rear glass opening function when original hinges fail or crack
- Direct replacement design installs with basic hand tools
Buy APDTY 035271 directly from APDTY
What Does the APDTY 035271 Rear Hatch Glass Hinge Set Do?
The APDTY 035271 hinge set connects the flip-up rear window glass to the main liftgate frame on Ford Explorer and Mercury Mountaineer SUVs. Unlike many SUVs where the rear glass is fixed, these models feature a two-section tailgate: the lower liftgate door and an upper glass section that can open independently. The hinges pivot at the top edge of the glass, allowing you to swing the window upward for quick access to the cargo area without opening the entire tailgate.
This design is especially convenient for loading small items or reaching into the rear cargo space in tight parking situations. When the original hinges crack, corrode, or lose tension, the glass may not stay open, may rattle, or in severe cases, may detach entirely—creating a safety hazard. The APDTY 035271 set provides both left and right hinges to restore full factory functionality.
What Are the Symptoms of Worn or Broken Rear Glass Hinges?
Failed or failing rear hatch glass hinges produce several recognizable symptoms:
- Glass won't stay open: The window drops or slams shut immediately after opening, indicating broken or weak hinge springs or pivot points
- Rattling or clunking sounds: Loose or cracked hinges allow the glass to move excessively over bumps, creating noise from the rear
- Visible cracks or corrosion: Plastic hinge bodies crack from UV exposure and temperature cycles; metal pivot points rust and seize
- Glass misalignment: Damaged hinges cause the glass to sit unevenly in the frame, creating gaps that allow water intrusion or wind noise
- Complete detachment: In extreme cases, failed hinges allow the glass to separate from the tailgate, risking damage or injury
Any of these issues indicates the need for immediate hinge replacement. Because the hinges support the weight of the glass, worn components pose both functional and safety concerns.
Which Vehicles Does the APDTY 035271 Fit?
The APDTY 035271 rear hatch glass hinge pair is specifically designed for:
| Year Range | Make | Model | Body Style | Important Notes |
|---|---|---|---|---|
| 2002-2005 | Ford | Explorer | 4-Door | Does NOT fit Sport models |
| 2002-2005 | Mercury | Mountaineer | 4-Door | All trim levels compatible |
Important fitment restrictions: This hinge set fits only the standard 4-door Explorer and Mountaineer models with the flip-up rear glass feature. It does NOT fit Ford Explorer Sport models, which have a different tailgate design. If you own a 2-door Explorer Sport or Explorer Sport Trac, this part is not compatible. Always verify your vehicle's body style and door configuration before ordering.
This set replaces Ford OE part numbers 2L2Z78420A68AA and 2L2Z-78420A68-AA, making it a direct factory replacement for the original equipment hinges.
APDTY 035271 Specifications and What's Included
| APDTY Part Number: | 035271 |
| Replaces OE Numbers: | 2L2Z78420A68AA, 2L2Z-78420A68-AA |
| Quantity in Set: | 2 pieces (left and right) |
| Position: | Rear hatch window glass hinges |
| Fitment: | 2002-2005 Ford Explorer 4-door (not Sport), 2002-2005 Mercury Mountaineer 4-door |
| Material: | Durable reinforced construction designed for long service life |
| Installation Type: | Direct replacement, no modifications required |
This complete set includes both the driver side (left) and passenger side (right) hinges, eliminating the need to purchase components separately. Both hinges are required for proper glass operation and should be replaced as a pair to ensure balanced support and even wear.
How to Install the APDTY 035271 Rear Glass Hinges
Replacing the rear hatch glass hinges on 2002-2005 Ford Explorer and Mercury Mountaineer models is a straightforward process for DIYers with basic mechanical skills. Safety first: The rear glass is heavy (typically 20-30 pounds) and fragile. Have a helper assist you to support the glass weight during removal and installation. Work carefully to avoid dropping or cracking the glass.
General installation overview:
- Open the rear glass fully and prop it securely using a support rod or have a helper hold it
- Disconnect any electrical connections to the rear wiper or defrost grid if your vehicle is equipped
- Remove the fasteners securing the old hinges to both the glass and the liftgate frame (typically Torx or Phillips screws)
- Carefully remove the old hinges one at a time, supporting the glass weight as each hinge is removed
- Position the new APDTY 035271 hinges in the same locations as the originals
- Install and hand-tighten the fasteners before fully tightening to allow alignment adjustment
- Check glass alignment and operation before final tightening—the glass should open smoothly and stay in the open position
- Reconnect electrical connections and test wiper and defrost operation
Tips for success: Clean the mounting surfaces on both the glass and liftgate frame before installing new hinges to ensure proper contact. Apply a small amount of dielectric grease to pivot points for smooth operation and corrosion resistance. Torque fasteners to factory specifications (consult a repair manual for exact values) to avoid over-tightening, which can crack plastic components or strip threads.
If you encounter rusted or seized fasteners, apply penetrating oil and allow time to soak before attempting removal. In cold climates where road salt accelerates corrosion, consider applying a protective coating to exposed metal components after installation.
Frequently asked questions
Does the APDTY 035271 fit 2-door Ford Explorer Sport models?
No. This hinge set is designed exclusively for 4-door Ford Explorer and Mercury Mountaineer models from 2002-2005. It does NOT fit Explorer Sport models or Explorer Sport Trac, which have different tailgate configurations.
Are both left and right hinges included in the APDTY 035271 set?
Yes. The APDTY 035271 is a complete pair that includes both the rear left (driver side) and rear right (passenger side) hinges. Both hinges should be replaced together to ensure balanced support and even wear.
What Ford OE part numbers does the APDTY 035271 replace?
This hinge set replaces Ford original equipment part numbers 2L2Z78420A68AA and 2L2Z-78420A68-AA. It is a direct factory replacement requiring no modifications.
Can I replace just one hinge or do I need to replace both?
While it's physically possible to replace only one hinge, best practice is to replace both as a pair. When one hinge fails, the other has experienced similar wear and stress. Replacing both ensures balanced support, prevents uneven glass operation, and avoids a second repair shortly after.
The APDTY 035271 rear hatch window glass hinge set restores reliable flip-up glass operation to your 2002-2005 Ford Explorer or Mercury Mountaineer 4-door SUV. This complete pair replaces worn, cracked, or corroded factory hinges with durable components engineered to OE specifications. With both left and right hinges included and straightforward installation, you can eliminate rattles, sagging glass, and safety concerns—often in under an hour with basic tools. If your rear glass won't stay open or you've noticed looseness and noise from the tailgate area, the APDTY 035271 provides the factory-quality solution at a fraction of dealer prices. Check the fitment details above to confirm compatibility with your specific vehicle configuration, then restore your rear glass to smooth, secure operation.