Dorman 742-129 Power Window Motor - Front Left, Front Right or Rear Right

Reliable Window Motor Replacement for Buick, Oldsmobile, and Pontiac

The Dorman 742-129 window motor is designed to restore smooth window operation in select Buick, Oldsmobile, and Pontiac vehicles. This plug-in motor includes the window lift gear, ensuring compatibility and ease of installation for models like the Alero, Aurora, Bonneville, Grand Am, and LeSabre.

• Compatible with Buick Alero, Oldsmobile Aurora, Pontiac Bonneville, Grand Am, and LeSabre
• Part number 742-129 for precise identification
• Plug-in design for straightforward electrical connection
• Includes window lift gear for complete motor function
• Does not include regulator, mounting hardware, or wiring harness

Product Features and Specifications

The Dorman 742-129 window motor is engineered without embedded logic control, providing a direct and reliable power source for window operation. Its plug-in wiring design simplifies replacement without the need for splicing or additional wiring harnesses. While the motor includes the window lift gear, mounting hardware and regulator components are not part of this package, allowing for compatibility with existing vehicle parts. This window motor is specifically designed for electrical, lighting, and body applications related to glass and window components.

Common Applications and Problem Resolution

This window motor is used to replace faulty or non-functioning window lift motors in compatible Buick, Oldsmobile, and Pontiac vehicles. It addresses several common issues:

• Windows that fail to move up or down
• Intermittent window operation or slow movement
• Grinding noises during window operation due to worn motor gears
• Complete window motor failure preventing window control
• Electrical connection issues resolved by plug-in motor design

Installation Notes and Tips

Installation of the Dorman 742-129 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 or source replacements separately. The plug-in wiring harness allows for direct connection without modification. Verify vehicle compatibility with Buick Alero, Oldsmobile Aurora, Pontiac Bonneville, Grand Am, and LeSabre models before installation.

Quality Assurance and Warranty Information

Dorman window motors are manufactured to meet or exceed OEM standards for fit and function. The 742-129 part number undergoes quality checks to ensure reliable performance. While specific warranty details vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.