Dorman 740-452 Window Regulator - Rear Left

Overview of Dorman Window Regulator for Mercedes-Benz

The Dorman 740-452 window regulator is designed for select Mercedes-Benz models, including the E55 AMG, E320, E420, and E430. This electric window regulator provides reliable operation with a durable metal and plastic frame construction, ensuring consistent window movement.

• Compatible with Mercedes-Benz E55 AMG, E320, E420, and E430 models
• Electric window operation type for smooth control
• Durable metal and plastic frame materials for strength and longevity
• Plastic gear material designed for quiet and efficient function
• Bolt-on attachment type for secure installation
• Includes one power regulator unit; mounting hardware and motor not included

Product Details and Specifications

The Dorman 740-452 window regulator features a combination of metal and plastic frame materials that balance durability with weight considerations. The plastic gear material reduces noise during operation while maintaining reliable performance. This part is designed for electric window systems but does not include the motor, making it suitable for replacing the regulator mechanism itself. The bolt-on attachment type allows for straightforward mounting to the door assembly. Note that mounting hardware and installation instructions are not included with this product.

Compatible Vehicles and Applications

This window regulator is compatible with the following Mercedes-Benz models: E55 AMG, E320, E420, and E430. It is intended for use in electric window systems where the regulator mechanism requires replacement due to wear or failure.

• Resolves window sticking or failure to move up and down
• Addresses issues with window alignment or uneven movement
• Replaces worn or damaged plastic gears within the regulator
• Restores smooth electric window operation in compatible Mercedes-Benz models

Installation Notes and Tips

Installation of the Dorman 740-452 window regulator requires removal of the door panel and disconnection of the existing regulator. Since mounting hardware and motor are not included, retain or replace these components as needed. The bolt-on attachment type facilitates a secure fit, but professional installation is recommended to ensure proper alignment and function. Verify compatibility with your specific Mercedes-Benz model before installation.

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 engineered for durability with quality materials such as metal and plastic frames and plastic gears. Warranty coverage details should be confirmed at the point of purchase or with the manufacturer.