OE Quality
60-Day Returns

Dorman 740-171 Window Regulator - Rear Right
Reliable Rear Right Window Regulator for Ford Expedition and Lincoln Navigator
The Dorman 740-171 window regulator is designed specifically for the rear right door of Ford Expedition and Lincoln Navigator models. This electric window regulator offers a durable solution for restoring smooth window operation without the need for a motor replacement.
Key Features of the Dorman 740-171 Window Regulator
- Compatible with rear right door of Ford Expedition and Lincoln Navigator
- Electric window operation type for seamless power window control
- Durable plastic gear and housing materials for reliable performance
- Metal and plastic frame construction for structural integrity
- Bolt-on attachment type for straightforward installation
- Includes one power regulator unit; mounting hardware and motor not included
Detailed Product Description
The Dorman 740-171 window regulator is engineered to meet the specific requirements of the rear right door on Ford Expedition and Lincoln Navigator vehicles. Featuring a plastic gear and housing, this regulator balances lightweight design with durability. The frame combines metal and plastic components to provide a sturdy foundation that supports consistent window movement. Designed for electric window systems, this part does not include a motor, making it ideal for replacing just the regulator mechanism. The bolt-on attachment type allows for a secure fit using existing mounting points, although mounting hardware and installation instructions are not included.
Common Issues Addressed by This Window Regulator
- Window glass failing to move up or down smoothly in the rear right door
- Intermittent or complete loss of power window function on the rear right side
- Grinding or clicking noises during window operation due to worn gears
- Window glass misalignment or falling inside the door panel
- Broken or damaged regulator mechanism without motor failure
Installation Notes and Tips
- Designed for bolt-on installation; use existing mounting points on the rear right door
- Motor is not included; ensure motor functionality before installation
- Mounting hardware is not included; retain original bolts or source separately
- Professional installation is recommended for proper alignment and operation
- Verify compatibility with your specific Ford Expedition or Lincoln Navigator model year
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-171 window regulator undergoes quality checks to ensure reliable performance in Ford Expedition and Lincoln Navigator vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.
| Brand | Dorman |
| Part Number | 740-171 |
| Attachment Type | Bolt On |
| Frame Material | Metal |
| Frame Material | Plastic |
| Housing Material | Plastic |
| Installation Instructions Included | No |
| Motor Included | No |
| Mounting Hardware Included | No |
| Mounting Position | Rear Right |
| Package Contents | 1 Power Regulator |
| Thread Direction | Plastic |
| Window Operation Type | Electric |
| Wire Quantity | 0 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Ford | Expedition | Rear Right | Fits power window regulation in various vehicle models. |
| 2006 | Lincoln | Navigator | Rear Right | Fits power window regulation in various vehicle models. |
| 2005 | Ford | Expedition | Rear Right | Fits power window regulation in various vehicle models. |
| 2005 | Lincoln | Navigator | Rear Right | Fits power window regulation in various vehicle models. |
| 2004 | Ford | Expedition | Rear Right | Fits power window regulation in various vehicle models. |
| 2004 | Lincoln | Navigator | Rear Right | Fits power window regulation in various vehicle models. |
| 2003 | Ford | Expedition | Rear Right | Fits power window regulation in various vehicle models. |
| 2003 | Lincoln | Navigator | Rear Right | Fits power window regulation in various vehicle models. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.