Dorman 749-623 Window Regulator - Front Left

Reliable Window Regulator for Mercedes-Benz Models

The Dorman 749-623 window regulator is designed for select Mercedes-Benz vehicles, including the E55 AMG, E63 AMG, E320, E350, E500, and E550. This electric window regulator offers a bolt-on attachment type and comes with installation instructions to assist with a straightforward replacement.

• Compatible with Mercedes-Benz E55 AMG, E63 AMG, E320, E350, E500, and E550 models
• Electric window operation type for smooth functionality
• Durable metal and plastic frame construction
• Plastic gear material for reliable performance
• Bolt-on attachment type for secure installation
• Installation instructions included for ease of use
• Does not include motor or mounting hardware

Product Details and Specifications

The Dorman 749-623 window regulator features a combination of metal and plastic frame materials, providing a balance of strength and lightweight design. The gear mechanism is made of plastic, which is engineered to operate efficiently with electric window systems. This part is designed to bolt directly onto the door assembly, ensuring a secure fit without the need for additional mounting hardware, which is not included. While the motor is not part of this package, the regulator is compatible with the existing electric motor setup in the specified Mercedes-Benz models. Clear installation instructions are provided to guide through the replacement process.

Common Applications and Problem Resolution

• Restores smooth electric window operation in Mercedes-Benz E55 AMG, E63 AMG, E320, E350, E500, and E550
• Replaces faulty or broken window regulators causing window misalignment or failure to move
• Addresses issues with window sticking or slow movement
• Eliminates rattling or noise from damaged regulator components
• Supports repair of power window systems without replacing the motor

Installation Notes and Tips

Installation of the Dorman 749-623 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware is not included, retain original bolts or source compatible fasteners. Follow the included instructions closely to ensure proper alignment and secure attachment. It is recommended to test window operation before reassembling the door panel to confirm correct installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 749-623 window regulator undergoes quality checks to ensure durability and reliable performance in Mercedes-Benz vehicles. Installation instructions are included to support proper setup. Warranty coverage details can be obtained from the product documentation or manufacturer resources.