Dorman 740-026 Window Regulator - Front Left

Reliable Window Regulator for Mercedes-Benz S-Class Models

The Dorman 740-026 window regulator is designed specifically for Mercedes-Benz S55 AMG, S430, S500, and S600 models. This electric window regulator offers a bolt-on attachment type and durable construction to ensure smooth window operation.

Key Features of Dorman 740-026 Window Regulator

• Gear material constructed from plastic for consistent performance
• Electric window operation type compatible with factory systems
• Bolt-on attachment type for straightforward installation
• Housing made of plastic to reduce weight and resist corrosion
• Frame materials include both metal and plastic components for strength and flexibility
• Does not include motor or mounting hardware, allowing use with existing parts
• Package contains one power regulator unit

Detailed Description of the Dorman 740-026

This window regulator is engineered to meet the specifications of Mercedes-Benz S-Class vehicles including the S55 AMG, S430, S500, and S600. The combination of plastic gears and housing with a metal and plastic frame provides a balance of durability and lightweight design. The electric operation type ensures compatibility with the vehicle’s power window system, while the bolt-on attachment type simplifies the replacement process. Note that this part does not include a motor or mounting hardware, so it is intended for use with existing components or separate motor replacements.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Intermittent or non-functioning power window operation
• Grinding or clicking noises during window movement
• Loose or unstable window glass alignment
• Wear or damage to original window regulator components

Installation Notes and Tips

Installation of the Dorman 740-026 window regulator requires removal of the door panel and disconnection of the existing regulator. Since mounting hardware and motor are not included, ensure these components are in good condition or replaced separately. The bolt-on attachment type allows for a secure fit using factory mounting points. Professional installation is recommended to maintain proper window alignment and function.

Quality Assurance and Warranty Information

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 built with quality plastic and metal materials to provide reliable service. Please consult Dorman’s warranty policy for specific coverage details related to this part number 740-026.