Dorman 740-571 Window Regulator - Front Right

Reliable Window Regulator for Mercedes-Benz Models

The Dorman 740-571 window regulator is designed for electric window operation in select Mercedes-Benz vehicles. Engineered with durable materials, this part ensures smooth and consistent window movement for models including the 260E, 300D, 300E, 300TD, 300TE, 400E, 500E, E300, E320, E420, and E500.

• Gear material constructed from plastic for precise engagement
• Bolt-on attachment type for secure mounting
• Frame made from a combination of metal and plastic for strength and flexibility
• Electric window operation compatible, motor not included
• Includes one power regulator unit without mounting hardware or installation instructions

Durable Construction and Compatibility Details

This window regulator features a plastic gear that meshes smoothly within the mechanism, reducing wear and noise during operation. The frame combines metal and plastic components to balance rigidity and weight, ensuring reliable performance over time. Designed specifically for electric window systems, the Dorman 740-571 does not include a motor, making it suitable for vehicles where the motor remains functional or is replaced separately. The bolt-on attachment type allows for straightforward installation on compatible Mercedes-Benz models, including the 260E, 300D, 300E, 300TD, 300TE, 400E, 500E, E300, E320, E420, and E500.

Common Applications and Problem Resolution

• Restores smooth electric window operation in Mercedes-Benz 300E and E320 models
• Replaces worn or damaged window regulators causing window misalignment or jamming
• Addresses issues with window movement noise due to gear wear
• Solves problems related to window failure to stay in position
• Compatible replacement for Mercedes-Benz 500E and 400E window regulator repairs

Installation Notes and Tips

Installation requires removal of the door panel and detachment of the existing window regulator. Since mounting hardware and installation instructions are not included, it is recommended to have the necessary bolts and tools on hand before beginning the replacement. The bolt-on design facilitates a secure fit, but care should be taken to align the regulator properly to avoid window misalignment. Professional installation is advised if unfamiliar with electric window systems.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-571 window regulator undergoes quality checks to ensure durability and reliable operation in compatible Mercedes-Benz vehicles. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor.