OE Quality
60-Day Returns

Dorman 749-991 Window Regulator - Front Right
Reliable Window Regulator for Select Mercedes-Benz Models
The Dorman 749-991 window regulator is designed to restore smooth electric window operation in various Mercedes-Benz vehicles. Engineered with durable materials, this power window regulator offers a bolt-on installation solution for models including the C32 AMG, C55 AMG, C230, C240, C280, C320, and C350.
Key Features of the Dorman 749-991 Window Regulator
- Gear material constructed from plastic for consistent performance
- Metal and plastic frame components for balanced strength and flexibility
- Bolt-on attachment type for straightforward installation
- Electric window operation compatible, motor not included
- Includes one power regulator unit per package
- No mounting hardware or installation instructions included
Detailed Product Description
The Dorman 749-991 window regulator is specifically designed for electric window systems in select Mercedes-Benz models such as the C32 AMG, C55 AMG, C230, C240, C280, C320, and C350. The regulator features a plastic gear that meshes smoothly within a frame constructed from both metal and plastic materials, providing a reliable mechanism for raising and lowering the window glass. This part is intended as a direct replacement and uses a bolt-on attachment method, ensuring compatibility with factory mounting points. Note that the motor is not included, so this regulator is ideal for vehicles where the motor remains functional or is being replaced separately.
Common Applications and Issues Addressed
- Restores electric window movement when the regulator gear is worn or broken
- Eliminates window misalignment or jamming during operation
- Replaces damaged or bent regulator frames affecting window stability
- Solves issues with windows that fail to stay in position
- Addresses rattling or noise caused by faulty regulator components
Installation Notes and Tips
- Designed for bolt-on installation; ensure proper alignment with factory mounting points
- Motor is not included; verify motor condition before installation or replace separately if needed
- Installation instructions are not included; professional installation or reference to vehicle service manual is recommended
- Check window glass and door components for damage before installing the regulator
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 749-991 window regulator undergoes quality checks to ensure durability and reliable operation in Mercedes-Benz vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor.
| Brand | Dorman |
| Part Number | 749-991 |
| Attachment Type | Bolt On |
| Frame Material | Metal |
| Frame Material | Plastic |
| Installation Instructions Included | No |
| Motor Included | No |
| Mounting Hardware Included | No |
| Package Contents | 1 Power Regulator |
| Thread Direction | Plastic |
| Window Operation Type | Electric |
| Wire Quantity | 0 |
This part fits 33 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2007 | Mercedes-Benz | C230 | Front Right | Fits power window regulation in various vehicle models. | |
| 2007 | Mercedes-Benz | C280 | Front Right | Fits power window regulation in various vehicle models. | |
| 2007 | Mercedes-Benz | C350 | Front Right | Fits power window regulation in various vehicle models. | |
| 2006 | Mercedes-Benz | C230 | Front Right | Fits power window regulation in various vehicle models. | |
| 2006 | Mercedes-Benz | C280 | Front Right | Fits power window regulation in various vehicle models. | |
| 2006 | Mercedes-Benz | C350 | Front Right | Fits power window regulation in various vehicle models. | |
| 2006 | Mercedes-Benz | C55 AMG | Front Right | Fits power window regulation in various vehicle models. | |
| 2005 | Mercedes-Benz | C230 | Sedan | Front Right | Fits power window regulation in various vehicle models. |
| 2005 | Mercedes-Benz | C240 | Front Right | Fits power window regulation in various vehicle models. | |
| 2005 | Mercedes-Benz | C320 | Sedan | Front Right | Fits power window regulation in various vehicle models. |
| 2005 | Mercedes-Benz | C55 AMG | Front Right | Fits power window regulation in various vehicle models. | |
| 2004 | Mercedes-Benz | C230 | Sedan | Front Right | Fits power window regulation in various vehicle models. |
| 2004 | Mercedes-Benz | C240 | Front Right | Fits power window regulation in various vehicle models. | |
| 2004 | Mercedes-Benz | C32 AMG | Front Right | Fits power window regulation in various vehicle models. | |
| 2004 | Mercedes-Benz | C320 | Sedan | Front Right | Fits power window regulation in various vehicle models. |
| 2004 | Mercedes-Benz | C320 | Wagon | Front Right | Fits power window regulation in various vehicle models. |
| 2003 | Mercedes-Benz | C230 | Sedan | Front Right | Power; 11th Digit of VIN is A; From 7/31/03 |
| 2003 | Mercedes-Benz | C230 | Sedan | Front Right | Power; 11th Digit of VIN is E; From 6/30/03 |
| 2003 | Mercedes-Benz | C230 | Sedan | Front Right | Power; 11th Digit of VIN is F; From 8/05/03 |
| 2003 | Mercedes-Benz | C230 | Sedan | Front Right | Power; 11th Digit of VIN is R; From 12/04/03 |
| 2003 | Mercedes-Benz | C240 | Front Right | Power; 11th Digit of VIN is A; From 7/31/03 | |
| 2003 | Mercedes-Benz | C240 | Front Right | Power; 11th Digit of VIN is E; From 6/30/03 | |
| 2003 | Mercedes-Benz | C240 | Front Right | Power; 11th Digit of VIN is F; From 8/05/03 | |
| 2003 | Mercedes-Benz | C240 | Front Right | Power; 11th Digit of VIN is R; From 12/04/03 | |
| 2003 | Mercedes-Benz | C32 AMG | Front Right | Power; 11th Digit of VIN is E; From 6/30/03 | |
| 2003 | Mercedes-Benz | C32 AMG | Front Right | Power; 11th Digit of VIN is F; From 8/05/03 | |
| 2003 | Mercedes-Benz | C32 AMG | Front Right | Power; 11th Digit of VIN is R; From 12/04/03 | |
| 2003 | Mercedes-Benz | C32 AMG | Front Right | Power; 11th Digit of VIN is A; From 7/31/03 | |
| 2003 | Mercedes-Benz | C320 | Sedan | Front Right | Power; 11th Digit of VIN is A; From 7/31/03 |
| 2003 | Mercedes-Benz | C320 | Sedan | Front Right | Power; 11th Digit of VIN is E; From 6/30/03 |
| 2003 | Mercedes-Benz | C320 | Sedan | Front Right | Power; 11th Digit of VIN is F; From 8/05/03 |
| 2003 | Mercedes-Benz | C320 | Sedan | Front Right | Power; 11th Digit of VIN is R; From 12/04/03 |
| 2003 | Mercedes-Benz | C320 | Wagon | Front Right | Power; From 5/18/03 |
* 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.