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DormanPart #: 740-645
Dorman 740-645 Window Regulator - Front Right
⚙️ 141 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$64.72Free Shipping
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Cadillac, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 1500 Classic, Sierra 1500 HD Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, and Sierra 2500
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Not what you need? Click here for all Window Regulator options
Reliable Electric Window Regulator for GM Trucks and SUVs
The Dorman 740-645 window regulator is designed for electric window operation in select Cadillac, Chevrolet, and GMC vehicles. This bolt-on replacement part features a durable metal and plastic frame with a plastic gear, engineered to restore smooth window functionality without the need for a motor.
- Compatible with Cadillac Escalade, Escalade ESV, Escalade EXT
- Fits Chevrolet Avalanche 1500/2500, Silverado 1500/2500/3500 series
- Suitable for GMC Sierra 1500/2500/3500 and Yukon models
- Electric window operation type, motor not included
- Bolt-on attachment for straightforward installation
- Durable metal and plastic frame with plastic gear material
- Includes one power regulator, mounting hardware not included
Product Details and Construction
The Dorman 740-645 window regulator is constructed with a combination of metal and plastic frame materials to balance strength and weight. The plastic gear material is designed to engage smoothly with the window mechanism, ensuring consistent operation. This part is intended for electric window systems and does not include a motor, making it ideal for replacing the regulator assembly while retaining the original motor. The bolt-on attachment type allows for a secure fit using existing mounting points on compatible vehicles.
Compatible Vehicles and Applications
This window regulator is compatible with a range of GM trucks and SUVs, including the Chevrolet Silverado 1500, 2500, and 3500 series (including Classic and HD models), Chevrolet Avalanche 1500 and 2500, GMC Sierra 1500, 2500, and 3500 series, Cadillac Escalade models, and GMC Yukon and Yukon XL 1500/2500. It is designed specifically for electric window systems in these vehicles, providing a direct replacement for worn or damaged regulators.
Common Issues Addressed by This Window Regulator
- Window glass failing to move up or down smoothly
- Intermittent or complete window operation failure
- Grinding or clicking noises during window movement
- Window stuck in one position due to regulator wear
- Loose or unstable window glass alignment
Installation Notes and Tips
Installation of the Dorman 740-645 window regulator requires removal of the door panel and disconnection of the window motor if applicable. Since mounting hardware and installation instructions are not included, it is recommended to retain original hardware and consult a repair manual specific to the vehicle model. The bolt-on design facilitates alignment with factory mounting points, but care should be taken to avoid damage to the plastic gear during installation.
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 engineered for durability and reliable performance in electric window systems. Please refer to Dorman's warranty policy for coverage details on this part number 740-645.
| Brand | Dorman |
| Part Number | 740-645 |
| 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 141 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Silverado 1500 Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | Chevrolet | Silverado 1500 HD Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | Chevrolet | Silverado 2500 HD Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | Chevrolet | Silverado 3500 | Front Right | |||
| 2007 | Chevrolet | Silverado 3500 Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | GMC | Sierra 1500 Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | GMC | Sierra 1500 HD Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | GMC | Sierra 2500 HD Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2007 | GMC | Sierra 3500 Classic | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Cadillac | Escalade | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Cadillac | Escalade ESV | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Cadillac | Escalade EXT | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Avalanche 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Avalanche 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Silverado 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Sierra 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2006 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Cadillac | Escalade | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Cadillac | Escalade ESV | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Cadillac | Escalade EXT | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Avalanche 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Avalanche 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Silverado 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Sierra 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2005 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Cadillac | Escalade | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Cadillac | Escalade ESV | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Cadillac | Escalade EXT | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Avalanche 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Avalanche 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Sierra 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2004 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Cadillac | Escalade | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Cadillac | Escalade ESV | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Cadillac | Escalade EXT | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Avalanche 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Avalanche 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Silverado 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Sierra 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Sierra 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2003 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Cadillac | Escalade | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Cadillac | Escalade EXT | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Avalanche 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Avalanche 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Silverado 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Sierra 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Sierra 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2002 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Silverado 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Silverado 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Silverado 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | Chevrolet | Tahoe | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Sierra 1500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Sierra 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Sierra 2500 HD | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Sierra 3500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Yukon | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2001 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | Chevrolet | Suburban 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | Chevrolet | Suburban 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | Chevrolet | Tahoe | 5.3L | V8 | Front Right | Fits power window regulation in various vehicle models. |
| 2000 | Chevrolet | Tahoe | 4.8L | V8 | Front Right | Fits power window regulation in various vehicle models. |
| 2000 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | GMC | Sierra 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | GMC | Yukon | 5.3L | V8 | Front Right | Fits power window regulation in various vehicle models. |
| 2000 | GMC | Yukon | 4.8L | V8 | Front Right | Fits power window regulation in various vehicle models. |
| 2000 | GMC | Yukon XL 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 2000 | GMC | Yukon XL 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 1999 | Chevrolet | Silverado 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 1999 | Chevrolet | Silverado 2500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 1999 | GMC | Sierra 1500 | Front Right | Fits power window regulation in various vehicle models. | ||
| 1999 | GMC | Sierra 2500 | 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:
191200968121382179ASK740645WLR3003
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.