Dorman 740-637 Window Regulator - Front Left

Reliable Window Regulator for Buick and Oldsmobile Models

The Dorman 740-637 window regulator is designed for electric window operation in select Buick and Oldsmobile vehicles. This power window regulator offers a bolt-on attachment type and is engineered to provide smooth and consistent window movement.

• Compatible with Buick Century, Oldsmobile Intrigue, and Oldsmobile Regal
• Electric window operation type without motor included
• Durable metal and plastic frame construction
• Plastic gear material for reliable gear engagement
• Bolt-on attachment for straightforward installation
• Package includes one power window regulator

Product Details and Specifications

The Dorman 740-637 window regulator features a combination of metal and plastic frame materials, ensuring a balance of strength and weight reduction. The gear mechanism is made from plastic, designed to mesh precisely for smooth window movement. This part is intended for electric window systems but does not include the motor, making it suitable for replacing the regulator assembly only. The bolt-on attachment type allows for secure mounting using existing hardware, although mounting hardware is not included in the package. Installation instructions are not provided, so professional installation or prior experience is recommended.

Compatible Vehicles and Applications

This window regulator is specifically compatible with the following vehicles:

• Buick Century
• Oldsmobile Intrigue
• Oldsmobile Regal

Use this part when you need to restore proper window function in these models, especially for electric window systems without a motor replacement.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Window stuck in one position due to worn or broken regulator gears
• Excessive noise or grinding during window operation
• Loose or unstable window glass movement
• Regulator assembly damage from wear or impact

Installation Notes and Tips

• Ensure compatibility with your vehicle’s make and model before installation
• Use existing mounting hardware or source appropriate bolts as mounting hardware is not included
• Disconnect the vehicle battery before beginning installation to avoid electrical hazards
• Carefully remove the door panel to access the window regulator assembly
• Professional installation is recommended if you are unfamiliar with window regulator replacement procedures

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 durable materials to provide reliable service. Please consult the product packaging or Dorman’s official resources for specific warranty details related to part number 740-637.