OE Quality
60-Day Returns

Dorman 749-730 Window Regulator - Rear Left
Reliable Window Regulator for Toyota Sienna
The Dorman 749-730 window regulator is designed specifically for Toyota Sienna models, providing a durable and efficient solution for electric window operation. This part ensures smooth window movement with a bolt-on attachment for straightforward replacement.
Key Features of Dorman 749-730 Window Regulator
- Gear material constructed from plastic for consistent performance
- Bolt-on attachment type for secure and easy installation
- Frame made from a combination of metal and plastic for strength and durability
- Electric window operation compatible with Toyota Sienna vehicles
- Does not include motor or mounting hardware, designed for direct replacement of regulator only
Detailed Product Description
The Dorman 749-730 window regulator is engineered to meet the specific requirements of Toyota Sienna models. Featuring a plastic gear and a mixed metal and plastic frame, this regulator balances durability with lightweight design. The bolt-on attachment type simplifies installation by allowing the part to be securely fastened without additional modifications. This window regulator is intended for electric window systems and does not include a motor or mounting hardware, making it ideal for replacing a faulty regulator while retaining the existing motor and hardware components.
Common Issues Addressed by This Window Regulator
- Window glass failing to move up or down smoothly
- Grinding or clicking noises during window operation
- Window becoming stuck in one position
- Loose or wobbly window glass
- Regulator gear wear causing inconsistent window movement
Installation Notes and Tips
Installation of the Dorman 749-730 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware is not included, retain the original bolts and fasteners during disassembly. The bolt-on design allows for a direct fit replacement, but ensure the vehicle’s battery is disconnected before beginning work on the electric window system to avoid electrical issues.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this window regulator does not include a motor or mounting hardware, it is built to provide reliable service for Toyota Sienna vehicles. Please refer to Dorman’s warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 749-730 |
| Gear Material | Plastic |
| Attachment Type | Bolt on |
| Mounting Hardware Included | No |
| Wire Quantity | 0 |
| Window Operation Type | Electric |
| Motor Included | No |
| Installation Instructions Included | No |
| Frame Material | Metal |
| Frame Material | Plastic |
| Package Contents | Window regulator |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
| 2008 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
| 2007 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
| 2006 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
| 2005 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
| 2004 | Toyota | Sienna | Rear Left | Fits power window regulation in various vehicle models. |
* 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.