Dorman 749-542 Window Regulator - Front Left

Overview of Dorman Window Regulator 749-542

The Dorman 749-542 window regulator is designed for electric window operation in select Ford and Lincoln vehicles. This power window regulator is compatible with Ford Expedition and Lincoln Navigator models, providing reliable window movement without the motor included.

• Gear Material: Durable plastic gear for smooth operation
• Attachment Type: Bolt-on installation for secure mounting
• Frame Material: Combination of metal and plastic for strength and flexibility
• Window Operation Type: Electric, designed for power window systems
• Package Contents: Includes one power window regulator without motor or mounting hardware

Detailed Product Description

The Dorman 749-542 window regulator is engineered to restore proper window function in Ford Expedition and Lincoln Navigator vehicles equipped with electric windows. Featuring a plastic gear mechanism, this regulator ensures consistent and quiet window movement. The frame combines metal and plastic components to balance durability and weight, while the bolt-on attachment type simplifies installation. Note that this part does not include the motor or mounting hardware, so it is intended for users who are replacing the regulator assembly only.

Compatible Vehicles and Common Applications

This window regulator is specifically compatible with the following vehicles:

• Ford Expedition with electric window systems
• Lincoln Navigator with electric window systems

It addresses common window issues such as:

• Window glass stuck or failing to move up and down
• Grinding or slipping noises during window operation
• Window falling inside the door panel
• Intermittent or no response from the power window switch
• Worn or broken regulator gears causing window misalignment

Installation Notes and Tips

Installation of the Dorman 749-542 window regulator requires removal of the door panel and disconnection of the window motor if present. Since mounting hardware and motor are not included, retain original components or source separately. The bolt-on attachment type allows for a straightforward replacement process, but professional installation is recommended for those unfamiliar with door panel disassembly. Installation instructions are not included with this part.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this window regulator does not include a motor or mounting hardware, it is built with quality plastic gears and a metal/plastic frame to ensure durability. Warranty coverage details should be confirmed at the point of purchase, as they may vary.