Dorman 740-857 Window Regulator - Front Right

Overview of Dorman 740-857 Window Regulator for Jeep

The Dorman 740-857 window regulator is designed specifically for Jeep Grand Cherokee and Grand Wagoneer models. This electric window regulator offers a reliable replacement option for restoring smooth window operation without the motor included.

• Compatible with Jeep Grand Cherokee and Grand Wagoneer
• Electric window operation type
• Durable metal and plastic frame construction
• Plastic gear material for consistent performance
• Bolt-on attachment type for secure installation
• Includes one power regulator unit

Product Features and Specifications

The Dorman 740-857 window regulator features a combination of metal and plastic frame materials that provide structural integrity while maintaining lightweight design. The plastic gear material ensures smooth engagement and reduces wear over time. This part is designed for electric window operation but does not include the motor, allowing for compatibility with existing motor assemblies. The bolt-on attachment type simplifies installation by securely fastening the regulator to the door frame. Note that mounting hardware and installation instructions are not included with this product.

Purpose and Common Applications

This window regulator is intended for use in Jeep Grand Cherokee and Grand Wagoneer vehicles experiencing issues with their power window mechanisms. It addresses problems such as:

• Window glass failing to move up or down smoothly
• Intermittent or non-functional electric window operation
• Grinding or unusual noises during window movement
• Loose or unstable window glass alignment
• Broken or worn window regulator gears

Installation Notes and Tips

Installation of the Dorman 740-857 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware and installation instructions are not included, it is recommended to have professional installation or consult a detailed repair manual specific to Jeep Grand Cherokee or Grand Wagoneer models. Ensure the existing motor is compatible and functioning properly before installation, as this regulator does not come with a motor.

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 built with durable materials to provide reliable service. Please refer to Dorman's official warranty policy for coverage details on the 740-857 window regulator.