Dorman 748-520 Power Window Motor and Regulator Assembly - Rear Left

Reliable Window Motor and Regulator Assembly for Buick and Pontiac

The Dorman 748-520 window motor and regulator assembly is designed to restore smooth window operation in select Buick and Pontiac vehicles. Engineered with durable plastic gears and complete mounting hardware, this assembly offers a direct replacement solution for the Buick Rendezvous and Pontiac Aztek models.

• Includes both window motor and regulator for a complete assembly
• Durable plastic gear material designed for consistent performance
• Attachment type: bolt for secure and stable installation
• Mounting hardware included for convenience
• Compatible with Buick Rendezvous and Pontiac Aztek vehicles
• Part number 748-520 ensures exact fit and function

Product Details and Specifications

This window motor and regulator assembly from Dorman is engineered to meet the specific requirements of the Buick Rendezvous and Pontiac Aztek. The plastic gear material balances durability with smooth operation, while the bolt attachment type ensures a secure fit. The package includes all necessary mounting hardware, simplifying the installation process. Although installation instructions are not included, the assembly is designed for straightforward replacement of the factory unit. This part number 748-520 is a direct fit replacement, maintaining the original window functionality.

Common Applications and Problem Resolution

This assembly is used to replace faulty or worn window motors and regulators in the following vehicles:

• Buick Rendezvous power window failure
• Pontiac Aztek window stuck or slow operation
• Window regulator mechanism damage or wear
• Intermittent window movement or no response
• Excessive noise during window operation

Installation Notes and Tips

Installation requires removal of the door panel and disconnection of the existing window motor and regulator. The bolt attachment type allows for a secure fit using the included mounting hardware. While installation instructions are not provided, professional installation or reference to a vehicle-specific repair manual is recommended to ensure proper alignment and electrical connections. Verify window operation before reassembling the door panel.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 748-520 window motor and regulator assembly undergoes quality checks to ensure reliable performance in Buick Rendezvous and Pontiac Aztek vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.