Dorman 741-643 Power Window Motor and Regulator Assembly - Front Left

Dorman 741-643 Window Motor and Regulator Assembly

This Dorman power window motor and regulator assembly is built as a direct replacement for the front left window on select Pontiac Grand Am and Oldsmobile Alero models. It is precision-engineered and tested to match stock fit, function, and performance for the listed applications.

Key Features

• Replacement power window motor and regulator assembly for the front left door
• Regulator included for a complete service solution
• Plastic gear material
• Bolt-on attachment type
• Package contents: 1 regulator and motor assembly
• Fits 1999-2005 Pontiac Grand Am, front left
• Fits 1999-2004 Oldsmobile Alero, front left

Detailed Description

The Dorman 741-643 is a window motor and regulator assembly engineered for direct replacement on the front left side of select Pontiac Grand Am and Oldsmobile Alero vehicles. It is designed to restore proper glass movement by combining the motor and regulator in one assembly, helping maintain the original window operation expected from the factory setup. This part cross-references ACI 82113 for the same application.

Built for specific vehicle years, makes, and models, this assembly supports a clean OE-style repair when the original regulator or motor has worn out, become noisy, or stopped moving the window correctly. The Dorman 741-643 is a practical choice for 1999-2005 Pontiac Grand Am and 1999-2004 Oldsmobile Alero front left window service.

What It Helps Fix

• Window glass that will not raise or lower
• Slow or inconsistent power window movement
• Grinding, slipping, or binding during operation
• Failed regulator components inside the door
• Motor-related loss of window function

Installation Notes and Tips

Installation instructions are not included. Mounting hardware is not included. Verify front left fitment before installation and compare the original assembly, connector style, and door configuration to the replacement part. Because this is a bolt-on assembly, proper alignment during installation helps ensure smooth window travel and reduced strain on the motor and regulator.

Quality Assurance

Dorman states that this replacement assembly is extensively tested and engineered to match the fit, function, and performance of the stock window regulator on the listed vehicles. The design is intended to provide a direct replacement solution for the specified applications.