OE Quality
60-Day Returns

Dorman 740-331 Window Regulator - Front Right
Reliable Window Regulator for Lexus LS430
The Dorman 740-331 window regulator is designed specifically for Lexus LS430 models, providing a durable and efficient solution for electric window operation. This power window regulator offers a bolt-on attachment type and a combination of metal and plastic frame materials to ensure proper fit and function.
Key Features of Dorman 740-331 Window Regulator
- Compatible with Lexus LS430 electric window systems
- Durable plastic gear material for smooth operation
- Bolt-on attachment type for straightforward installation
- Frame constructed from both metal and plastic components
- Does not include motor or mounting hardware
- Package contains one power window regulator
Detailed Product Description
The Dorman 740-331 window regulator is engineered to restore the electric window functionality in Lexus LS430 vehicles. Featuring a plastic gear mechanism, this regulator ensures consistent and quiet window movement. The frame combines metal and plastic materials to balance strength and weight, maintaining the integrity of the window assembly. Designed as a bolt-on replacement, it aligns with factory mounting points for a secure fit. Note that this part does not include the motor or mounting hardware, so those components must be sourced separately if needed.
Common Applications and Problem Resolution
- Replaces faulty or worn-out window regulators in Lexus LS430
- Addresses issues with windows that fail to move or move unevenly
- Solves problems related to broken or stripped plastic gears
- Restores smooth electric window operation without motor replacement
- Fixes rattling or loose window movement caused by damaged frames
Installation Notes and Tips
Installation of the Dorman 740-331 window regulator requires removal of the door panel and careful alignment with existing mounting points. Since mounting hardware is not included, retain original bolts or acquire replacements before beginning installation. This part is designed for bolt-on attachment, which simplifies the process but may require basic hand tools. Professional installation is recommended if unfamiliar with vehicle door components.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While specific warranty details for part number 740-331 are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer prior to purchase.
| Brand | Dorman |
| Part Number | 740-331 |
| 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 | 1 power regulator |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Lexus | LS430 | Front Right | Fits power window regulation in various vehicle models. |
| 2005 | Lexus | LS430 | Front Right | Fits power window regulation in various vehicle models. |
| 2004 | Lexus | LS430 | Front Right | Fits power window regulation in various vehicle models. |
| 2003 | Lexus | LS430 | Front Right | Fits power window regulation in various vehicle models. |
| 2002 | Lexus | LS430 | Front Right | Fits power window regulation in various vehicle models. |
| 2001 | Lexus | LS430 | Front Right | 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.