Dorman 741-645 Power Window Motor and Regulator Assembly - Front Right

Reliable Window Motor and Regulator Assembly for GM Trucks and SUVs

The Dorman 741-645 window motor and regulator assembly is designed to restore smooth and efficient window operation in select Cadillac, Chevrolet, and GMC vehicles. Engineered with a plastic gear and bolt attachment type, this assembly provides a direct replacement for your vehicle's power window system.

• Includes both window motor and regulator for complete replacement
• Plastic gear material designed for durability and quiet operation
• Bolt attachment type for secure and stable mounting
• Compatible with multiple GM models including Chevrolet Silverado and GMC Sierra series
• Does not include mounting hardware or installation instructions

Product Details and Compatibility

This window motor and regulator assembly from Dorman is specifically engineered for use in a range of GM trucks and SUVs such as the Chevrolet Avalanche 1500 and 2500, Silverado 1500 and 2500 HD, GMC Sierra 1500 and 2500 HD, as well as Cadillac Escalade and Yukon models. The assembly features a plastic gear that balances strength and noise reduction, ensuring reliable window movement. The bolt attachment type allows for a secure fitment, although mounting hardware is not included. This part number 741-645 is a direct replacement designed to match OEM specifications for seamless integration.

Common Applications and Problem Resolution

• Restores power window function when the window motor fails
• Eliminates window regulator issues such as window dropping or sticking
• Replaces worn or damaged plastic gears causing grinding noises
• Addresses bolt attachment failures that lead to loose window operation
• Solves intermittent or non-responsive window movement in compatible GM trucks and SUVs

Installation Notes and Tips

Installation of the Dorman 741-645 window motor and regulator assembly requires removal of the door panel and disconnection of the existing motor and regulator. Since mounting hardware and installation instructions are not included, it is recommended to retain original hardware or source appropriate bolts. Proper alignment of the regulator is critical to ensure smooth window operation. Professional installation or consultation of a vehicle-specific repair manual is advised for best results.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this assembly does not include embedded logic or micro-controlled features, it is built to provide reliable performance in demanding automotive environments. Please refer to Dorman's warranty policy for coverage details on part number 741-645.