Dorman 740-050 Window Regulator - Rear Left

Reliable Electric Window Regulator for Audi A4 Models

The Dorman 740-050 window regulator is designed to restore smooth electric window operation in select Audi vehicles. Engineered with durable materials, this part offers a bolt-on installation solution for Audi A4, A4 Quattro, RS4, and S4 models.

• Compatible with Audi A4, A4 Quattro, RS4, and S4
• Electric window operation type without motor included
• Durable steel housing and metal/plastic frame construction
• Bolt-on attachment type for straightforward installation
• Installation instructions included for ease of use

Durable Construction and Design Features

The Dorman 740-050 window regulator features a steel housing that provides structural strength and resistance to wear. The frame combines metal and plastic materials to balance durability and weight. The gear mechanism is made of plastic, designed to mesh smoothly with the window components. This regulator operates electrically but does not include a motor, making it compatible with existing motor assemblies in your Audi A4, A4 Quattro, RS4, or S4. The bolt-on attachment type ensures a secure fit without the need for modifications.

Compatible Audi Models and Common Applications

This window regulator is specifically compatible with the following Audi models:

• Audi A4
• Audi A4 Quattro
• Audi RS4
• Audi S4

It is designed to replace faulty or worn-out window regulators that cause issues such as:

• Window glass failing to move up or down smoothly
• Intermittent or no response from the electric window switch
• Grinding or unusual noises during window operation
• Window glass becoming stuck or falling inside the door panel
• Loose or unstable window movement

Installation Notes and Tips

The Dorman 740-050 window regulator comes with installation instructions to assist with the replacement process. Since the motor is not included, ensure your existing motor is functional or replace it separately if needed. The bolt-on attachment type allows for a direct swap with the original regulator, minimizing installation time. It is recommended to disconnect the vehicle battery before installation to avoid electrical hazards.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-050 window regulator is built with quality materials including steel housing and a metal/plastic frame to ensure durability. Installation instructions are included to support proper setup. Please refer to Dorman's warranty policy for specific coverage details.