Dorman 740-574 Window Regulator - Front Left

Reliable Window Regulator for Mercedes-Benz E-Class Models

The Dorman 740-574 window regulator is designed specifically for select Mercedes-Benz E-Class vehicles, including the E55 AMG, E320, E420, and E430. This electric window regulator offers a bolt-on attachment type and is engineered to restore smooth window operation without the need for a motor.

Key Features of the Dorman 740-574 Window Regulator

• Compatible with Mercedes-Benz E55 AMG, E320, E420, and E430 models
• Electric window operation type for seamless power window control
• Bolt-on attachment type for straightforward installation
• Durable metal and plastic frame materials for structural integrity
• Plastic gear material designed for reliable gear engagement
• Package includes one power regulator without motor or mounting hardware

Detailed Product Description

The Dorman 740-574 window regulator is engineered to meet the specific requirements of Mercedes-Benz E-Class vehicles such as the E55 AMG, E320, E420, and E430. Featuring a combination of metal and plastic frame materials, this regulator balances strength and weight to ensure consistent window movement. The plastic gear material is designed to engage smoothly with the window mechanism, providing reliable electric window operation. This part is a bolt-on type, allowing for a secure fit without modifications. Note that the motor and mounting hardware are not included, so it is intended for use with existing compatible components.

Common Issues Addressed by This Window Regulator

• Intermittent or non-functioning power window movement
• Window glass that fails to stay in position or moves unevenly
• Grinding or slipping noises during window operation
• Wear or damage to the window regulator gear or frame
• Replacement of a broken or malfunctioning regulator in Mercedes-Benz E-Class models

Installation Notes and Tips

• Ensure compatibility with your specific Mercedes-Benz model (E55 AMG, E320, E420, or E430) before installation
• Since mounting hardware and motor are not included, retain or source these components separately
• Follow vehicle-specific service manual instructions for removal and installation procedures
• Check window alignment after installation to confirm smooth operation
• Use appropriate tools for bolt-on attachment to avoid damage to mounting points

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 740-574 window regulator undergoes quality checks to ensure durability and reliable performance in Mercedes-Benz E-Class vehicles. While installation instructions are not included, professional installation is recommended. Warranty coverage details can be obtained from the product packaging or Dorman's official resources.