Dorman 742-504 Power Window Motor - Front Left, Front Right, Rear Left or Rear Right

Reliable Window Motor Replacement for Infiniti, Nissan, and Mercury Vehicles

The Dorman 742-504 window motor is designed to restore smooth and efficient power window operation in select Infiniti, Nissan, and Mercury models. This plug-in motor includes a wiring harness and window lift gear, providing a straightforward replacement solution for common window motor failures.

Key Features of the Dorman 742-504 Window Motor

• Compatible with Infiniti, Nissan, and Mercury vehicles including Altima, Maxima, Pathfinder, Frontier, and more
• Plug-in design for easy electrical connection and installation
• Includes wiring harness and window lift gear for complete motor functionality
• Does not include regulator or mounting hardware, allowing reuse of existing components
• Designed without embedded logic for straightforward operation

Detailed Product Description

The Dorman 742-504 window motor is engineered to replace faulty or worn-out window lift motors in a range of Infiniti, Nissan, and Mercury vehicles such as the Nissan 200SX, Sentra, and Xterra, as well as the Infiniti I30, I35, and QX4. This motor features a plug-in electrical connection, simplifying the installation process by eliminating the need for splicing or hardwiring. The included wiring harness ensures proper connectivity, while the integrated window lift gear supports smooth window movement. Note that this unit does not come with a regulator or mounting hardware, so the existing parts from the original assembly should be retained and reused during installation.

Common Applications and Issues Addressed

• Restores power window function when the motor fails to operate
• Eliminates window stalling or slow movement in Nissan Altima and Maxima models
• Resolves intermittent window operation in Infiniti I30 and I35 vehicles
• Fixes non-responsive window controls in Mercury Villager and Nissan Pathfinder
• Addresses grinding or unusual noises caused by worn window lift gears

Installation Notes and Tips

• Compatible with factory window regulators; no regulator included
• Retain original mounting hardware for proper fitment
• Ensure electrical connectors are securely plugged in to avoid connection issues
• Test window operation before reassembling door panels
• Refer to vehicle-specific service manuals for detailed removal and installation procedures

Quality Assurance and Warranty Information

Dorman window motors undergo rigorous quality control to meet OEM standards for fit and function. The 742-504 part number is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship. This ensures reliable performance and peace of mind when replacing window motors on compatible Infiniti, Nissan, and Mercury vehicles.