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Dorman 741-878 Window Motor and Regulator Assembly - Rear Left
Dorman 741-878 Rear Left Window Motor and Regulator
This Dorman power window motor and regulator assembly is built for specific rear left applications on Buick Skylark, Oldsmobile Achieva, and Pontiac Grand Am models. It is engineered and tested to match the original fit, function, and operating performance of the factory window regulator.
- Direct replacement window motor and regulator assembly for rear left door applications
- Precision-engineered to match stock fit and operation
- Plastic gear material
- Bolt-on attachment type
- Regulator included for a complete assembly replacement
- Compatible with 1992-1998 Buick Skylark, rear left
- Compatible with 1992-1998 Oldsmobile Achieva, rear left
- Compatible with 1992-1998 Pontiac Grand Am, rear left
Built as an OE-style replacement, the Dorman 741-878 helps restore smooth rear window movement where the original motor or regulator has worn out, bound up, or stopped responding. This assembly is a practical choice for drivers searching for a rear left window motor and regulator assembly for 1992-1998 Buick Skylark, Oldsmobile Achieva, or Pontiac Grand Am models.
This part cross-references ACI 82200 for the same application.
Common Problems This Part Can Address
- Rear window will not move up or down
- Slow, uneven, or noisy window operation
- Window slipping, binding, or dropping inside the door
- Motor failure caused by worn internal components
- Regulator wear that prevents stable glass movement
Installation Notes and Tips
Installation instructions are not included. Verify rear left fitment before installation and compare the original assembly, connector style, and mounting points to the replacement unit. Because this assembly uses bolt attachment points, proper alignment during installation is important for smooth window travel.
Quality Assurance
Dorman designs this replacement assembly to match the original equipment fit and function for the listed vehicles. The part is extensively tested during development to support consistent operation in the specified applications.
| Brand | Dorman |
|---|---|
| Part Number | 741-878 |
| Gear Material | Plastic |
| Attachment Type | Bolt |
| Mounting Hardware Included | No |
| Installation Instructions Included | No |
| Micro-controlled (Embedded Logic) | No |
| Package Contents | 1 regulator and motor assembly |
| Regulator Included | Yes |
This part fits 21 vehicles. Search below:
| Year | Make | Model | # Doors | Position | Notes |
|---|---|---|---|---|---|
| 1998 | Buick | Skylark | Rear Left | ||
| 1998 | Oldsmobile | Achieva | Rear Left | ||
| 1998 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1997 | Buick | Skylark | 4 Door | Rear Left | |
| 1997 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1997 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1996 | Buick | Skylark | 4 Door | Rear Left | |
| 1996 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1996 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1995 | Buick | Skylark | 4 Door | Rear Left | |
| 1995 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1995 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1994 | Buick | Skylark | 4 Door | Rear Left | |
| 1994 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1994 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1993 | Buick | Skylark | 4 Door | Rear Left | |
| 1993 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1993 | Pontiac | Grand Am | 4 Door | Rear Left | |
| 1992 | Buick | Skylark | 4 Door | Rear Left | |
| 1992 | Oldsmobile | Achieva | 4 Door | Rear Left | |
| 1992 | Pontiac | Grand Am | 4 Door | Rear Left |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.