Dorman 749-556 Window Regulator - Rear Left

Reliable Window Regulator for Ford Expedition and Lincoln Navigator

The Dorman 749-556 window regulator is designed to restore smooth electric window operation in select Ford and Lincoln SUVs. Engineered with durable materials, this power window regulator is compatible with Ford Expedition and Lincoln Navigator models, providing a direct bolt-on replacement for your vehicle's door assembly.

Key Features of the Dorman 749-556 Window Regulator

• Gear material constructed from plastic for consistent performance
• Frame made from a combination of metal and plastic for strength and durability
• Bolt-on attachment type ensures straightforward installation
• Electric window operation type compatible with factory power window systems
• Includes one power regulator unit per package
• Does not include motor or mounting hardware
• No installation instructions included

Detailed Product Description

This Dorman window regulator (part number 749-556) is specifically designed for electric window systems in Ford Expedition and Lincoln Navigator vehicles. The regulator features a plastic gear that meshes smoothly with the window motor (sold separately), while the frame combines metal and plastic components to balance rigidity and weight. The bolt-on attachment type allows for a secure fit within the door panel without requiring modifications. Although mounting hardware and motor are not included, this regulator is engineered to meet OEM specifications for reliable window movement and alignment.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Intermittent or complete loss of electric window function
• Grinding or clicking noises during window operation
• Window glass misalignment or slipping inside the door
• Broken or worn regulator gears causing window malfunction

Installation Notes and Tips

• Compatible with factory electric window motors; motor not included
• Requires removal of door panel for access to window regulator assembly
• Use existing mounting hardware or source separately as hardware is not included
• Ensure proper alignment of regulator before tightening bolts to prevent window binding
• Professional installation recommended if unfamiliar with door panel disassembly

Quality Assurance and Warranty Information

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 and metal components to ensure durability. Warranty coverage details vary by distributor; please consult your point of purchase for specific warranty terms related to part number 749-556.