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Dorman 742-126 Power Window Motor - Rear Left
| Brand | Dorman 742-126 |
|---|---|
| Position | Rear Left |
| Hardwired Or Plug-In | Plug-In |
| Micro-controlled (Embedded Logic) | No |
| Mounting Hardware Included | No |
| Package Contents | Window Lift Motor |
| Regulator Included | No |
| Window Lift Gear Included | Yes |
| Wiring Harness Included | No |
| Fits | Pontiac and Oldsmobile · 13 vehicles |
OE direct replacement. Precision-engineered to match original fit and performance.
Plug-in design for straightforward electrical connection.
Includes the window lift gear for complete motor service.
Cross-references ACI 382224, Cardone Reman 42-174 and 22683778 for the same application. See all 4.
Rear Left Window Motor for Pontiac Grand Am and Oldsmobile Alero
This Dorman window motor is a plug-in replacement for the rear left power window on select Pontiac Grand Am and Oldsmobile Alero models. Part number 742-126 is precision-engineered to match the fit and operating performance of the original motor for a direct repair.
Key Features
- Fits rear left power window applications on select 1999-2005 Pontiac Grand Am and 1999-2004 Oldsmobile Alero models
- Plug-in electrical connection for straightforward replacement
- Includes the window lift gear
- Window lift motor only; regulator is not included
- Mounting hardware is not included
- No wiring harness included
- No embedded logic or micro-controlled module
Detailed Description
Dorman 742-126 is a replacement window lift motor built for specific rear left applications in the Pontiac Grand Am and Oldsmobile Alero. It is designed to restore power window operation by matching the original motor’s fit and performance characteristics, making it a practical choice when the factory motor has worn out or stopped working. This part cross-references Cardone Reman 42-174 for the same application.
Use 742-126 when servicing a rear left window that no longer responds, moves slowly, or struggles under load. The plug-in design supports direct electrical connection, and the included lift gear helps simplify the repair on the correct vehicle applications.
Common Problems This Part Can Help Solve
- Rear left window will not move up or down
- Window movement is slow, weak, or intermittent
- Motor runs but the glass does not travel properly
- Grinding or worn motor operation at the rear left door
- Failure of the original power window motor on the listed vehicles
Installation Notes and Tips
Verify the rear left door application before ordering. This part is a motor-only replacement, so confirm the regulator condition and reuse or source any required mounting hardware separately. Match the plug-in connector style and inspect the window track and regulator assembly for binding before installation. Fits 1999-2005 Pontiac Grand Am, rear left. Fits 1999-2004 Oldsmobile Alero, rear left.
Quality Assurance
Dorman manufactures replacement components engineered to match original equipment fit and function for specific vehicle applications. Part number 742-126 is built for the listed rear left fitments and is intended as a direct replacement for the original window lift motor.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Pontiac | Grand Am | Rear Left | — |
| 2004 | Oldsmobile | Alero | Rear Left | — |
| 2004 | Pontiac | Grand Am | Rear Left | — |
| 2003 | Oldsmobile | Alero | Rear Left | — |
| 2003 | Pontiac | Grand Am | Rear Left | — |
| 2002 | Oldsmobile | Alero | Rear Left | — |
| 2002 | Pontiac | Grand Am | Rear Left | — |
| 2001 | Oldsmobile | Alero | Rear Left | — |
| 2001 | Pontiac | Grand Am | Rear Left | — |
| 2000 | Oldsmobile | Alero | Rear Left | — |
| 2000 | Pontiac | Grand Am | Rear Left | — |
| 1999 | Oldsmobile | Alero | Rear Left | — |
| 1999 | Pontiac | Grand Am | Rear Left | — |
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