Dorman 742-128 Power Window Motor - Front Left, Front Right or Rear Left

Reliable Window Motor Replacement for Buick, Oldsmobile, and Pontiac

The Dorman 742-128 window motor is designed to restore smooth power window operation in select Buick, Oldsmobile, and Pontiac vehicles. This plug-in motor includes the window lift gear for a direct replacement without the need for additional parts.

• Compatible with Buick Alero, Oldsmobile Aurora, Pontiac Bonneville, Grand Am, and LeSabre models
• Plug-in design for straightforward installation
• Window lift gear included for complete motor function
• No regulator or mounting hardware included
• Wiring harness not included, designed for direct plug-in connection

Product Details and Features

The Dorman 742-128 window motor is engineered to provide reliable power window operation for specific GM vehicles. It features a plug-in connection that simplifies installation by eliminating the need for splicing or additional wiring harnesses. The included window lift gear ensures compatibility with the existing window regulator mechanism, although the regulator itself and mounting hardware are not part of this package. This motor does not include embedded logic or micro-controlled features, focusing on straightforward mechanical operation.

Compatible Vehicle Applications

This window motor is compatible with the following vehicles:

• Buick Alero
• Oldsmobile Aurora
• Pontiac Bonneville
• Pontiac Grand Am
• Buick LeSabre

When searching for a replacement window motor for these models, referencing part number 742-128 ensures proper fit and function.

Common Issues Addressed by This Window Motor

• Power windows that fail to move or respond
• Intermittent window operation or slow movement
• Grinding or unusual noises from the window motor area
• Window stuck in the up or down position
• Non-responsive window switches due to motor failure

Installation Notes and Tips

Installation of the Dorman 742-128 window motor requires removal of the door panel and disconnection of the existing motor. Since mounting hardware and regulator are not included, retain original components for reassembly. The plug-in wiring connection allows for a direct electrical hookup without modification. Verify compatibility with your vehicle’s make and model before installation to ensure proper fitment.

Quality Assurance and Warranty

Dorman window motors are manufactured to meet or exceed OEM standards for durability and performance. While this product does not include embedded logic, it is designed for reliable mechanical operation. Please consult the product packaging or manufacturer’s website for specific warranty details related to part number 742-128.