Dorman 741-878 Window Motor and Regulator Assembly - Rear Left

Reliable Window Motor and Regulator Assembly for Buick, Oldsmobile, and Pontiac

The Dorman 741-878 window motor and regulator assembly is designed to restore smooth window operation in select Buick Achieva, Oldsmobile Skylark, and Pontiac Grand Am models. Engineered with a plastic gear and bolt attachment type, this assembly offers a direct replacement solution for your vehicle's power window system.

Key Features of Dorman 741-878 Window Motor and Regulator

• Includes both window motor and regulator for complete assembly
• Durable plastic gear material designed for consistent performance
• Bolt attachment type ensures secure mounting
• Compatible with Buick Achieva, Oldsmobile Skylark, and Pontiac Grand Am
• No mounting hardware or installation instructions included

Detailed Product Description

This Dorman window motor and regulator assembly (part number 741-878) is engineered to meet the specific requirements of Buick Achieva, Oldsmobile Skylark, and Pontiac Grand Am vehicles. The plastic gear material provides a balance of durability and smooth operation, while the bolt attachment type allows for a secure fit within the door frame. This assembly includes the regulator, eliminating the need to source separate components. Although installation hardware and instructions are not included, the design aligns with factory specifications to facilitate straightforward replacement.

Common Applications and Problem Resolution

• Restores power window function when the motor fails or becomes unresponsive
• Replaces worn or damaged window regulator components causing window misalignment
• Eliminates window noise or jerky movement due to faulty gear mechanisms
• Addresses issues with windows that do not stay in position or move unevenly
• Solves problems related to broken or stripped plastic gears within the window assembly

Installation Notes and Tips

Installation requires removal of the door panel and disconnection of the existing window motor and regulator. Since mounting hardware and instructions are not included, it is recommended to retain original bolts and fasteners or acquire replacements separately. Careful alignment of the regulator during installation is essential to ensure smooth window operation. Professional installation is advised if unfamiliar with power window systems.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 741-878 window motor and regulator assembly undergoes quality checks to ensure reliable performance. Please refer to Dorman's official warranty policy for coverage details.