Dorman 740-556 Window Regulator - Front Left

Overview of Dorman 740-556 Window Regulator for Jeep Grand Cherokee

The Dorman 740-556 window regulator is designed specifically for Jeep Grand Cherokee models, providing reliable electric window operation. This power window regulator features a combination of metal and plastic frame materials and a plastic gear for smooth functionality.

• Compatible with Jeep Grand Cherokee electric window systems
• Durable metal and plastic frame construction
• Plastic gear material for consistent performance
• Bolt-on attachment type for secure installation
• Includes one power regulator without motor or mounting hardware

Product Details and Specifications

This Dorman window regulator (part number 740-556) is engineered to replace the electric window regulator in Jeep Grand Cherokee vehicles. The frame is constructed from both metal and plastic components to balance strength and weight. The gear mechanism is made of plastic, which is standard for smooth and quiet window movement. This unit is designed as a bolt-on attachment, ensuring a secure fit without the need for welding or modifications. Note that the motor and mounting hardware are not included, and the regulator operates without any wiring connections, making it compatible with existing vehicle wiring harnesses.

Common Applications and Problem Resolution

This window regulator is used to restore proper window function in Jeep Grand Cherokee vehicles experiencing issues such as:

• Window glass failing to move up or down smoothly
• Window stuck in one position due to regulator failure
• Grinding or unusual noises during window operation
• Loose or unstable window glass movement
• Non-responsive electric window controls related to regulator malfunction

Installation Notes and Tips

Installation of the Dorman 740-556 window regulator requires removal of the door panel and disconnection of the existing regulator. Since mounting hardware and motor are not included, reuse the original components or acquire replacements separately. The bolt-on attachment type simplifies securing the regulator to the door frame. Professional installation is recommended if unfamiliar with vehicle door disassembly. Installation instructions are not included with this product.

Quality Assurance and Warranty Information

Dorman manufactures this window regulator to meet or exceed OEM standards for fit and function on Jeep Grand Cherokee models. While installation instructions and mounting hardware are not provided, the part number 740-556 is backed by Dorman's quality control processes. Warranty coverage details should be confirmed through the point of purchase or Dorman directly.