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

Dorman 742-129 Window Motor

Restore power window operation with this Dorman window motor, engineered to match the fit and performance of the original motor in specific vehicle applications. It is a plug-in replacement with a built-in window lift gear, making it a direct service part for front and rear door repairs on select Buick, Pontiac, and Oldsmobile models.

• Plug-in electrical connection for straightforward replacement
• Window lift gear included for the specified application
• Regulator not included
• Mounting hardware not included
• Wiring harness not included

Fitment Details

• Fits 2000-2005 Buick LeSabre, front left; vendor: Valeo.
• Fits 2000-2005 Buick LeSabre, rear right; vendor: Valeo.
• Fits 2000-2005 Pontiac Bonneville, front left; vendor: Valeo.
• Fits 2000-2005 Pontiac Bonneville, rear right; vendor: Valeo.
• Fits 1999-2005 Pontiac Grand Am, front right.
• Fits 1999-2004 Oldsmobile Alero, front right.
• Fits 2001-2003 Oldsmobile Aurora, front left.
• Fits 2001-2003 Oldsmobile Aurora, rear right.

Detailed Description

Dorman 742-129 is a power window lift motor built for specific OE-style applications where the original motor has worn out or stopped working. The plug-in design supports direct electrical connection, and the included lift gear helps match the original assembly requirements for the listed Buick LeSabre, Pontiac Bonneville, Pontiac Grand Am, Oldsmobile Alero, and Oldsmobile Aurora fitments. This part cross-references Cardone New 82-1009 and SKP SK742129 for the same application.

Common Repair Symptoms

• Window moves slowly or stops before reaching the top or bottom
• Motor runs but the glass does not move
• Intermittent window operation from the driver or passenger switch
• Grinding or strained motor noise during window travel
• Power window failure on the specified door position

Installation Notes

Verify the door position and vehicle application before installation. This unit is a plug-in motor, so confirm the connector style matches the original part. The regulator is not included, and mounting hardware is not included, so reuse or source the required related components as needed for the repair. Check window track condition and regulator movement before final assembly to help prevent repeat failure.

Quality Assurance

Dorman designs this replacement motor to align with the fit and performance of the original component in the listed applications. Part number 742-129 is intended for direct replacement service on the confirmed vehicle positions shown above.