Dorman 740-517 Window Regulator - Front Left

Reliable Manual Window Regulator for GM Trucks and SUVs

The Dorman 740-517 manual window regulator is designed for select Cadillac, Chevrolet, and GMC models. This bolt-on replacement part features durable plastic gears and a metal and plastic frame to ensure smooth window operation without a motor.

• Manual window operation type for reliable control
• Durable plastic gear material for consistent performance
• Bolt-on attachment type for straightforward installation
• Metal and plastic frame construction for strength and durability
• Includes one manual regulator without mounting hardware or motor

Product Details and Specifications

The Dorman 740-517 window regulator is engineered to replace manual window regulators on various GM vehicles, including Cadillac Escalade, Chevrolet Silverado, and GMC Sierra models. Its plastic gear mechanism provides smooth and quiet window movement, while the combination of metal and plastic in the frame offers a balance of rigidity and corrosion resistance. This part does not include a motor or mounting hardware, making it suitable for manual window systems. The bolt-on design allows for a secure fit and easier installation compared to riveted or welded alternatives.

Compatible Vehicles and Applications

This manual window regulator is compatible with a range of GM trucks and SUVs, including:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500 and 2500, Silverado 1500, 2500, and 3500 series
• GMC Sierra 1500, 2500, 3500 series and Yukon models
• Suburban 1500 and 2500, Tahoe, Yukon XL 1500 and 2500

Common Issues Addressed by This Window Regulator

• Manual window stuck or difficult to operate
• Window falling inside the door panel
• Grinding or slipping gears during window movement
• Broken or worn window regulator components
• Loose or unstable window glass alignment

Installation Notes and Tips

Installation of the Dorman 740-517 requires removal of the door panel and old regulator. Since mounting hardware and motor are not included, reuse existing hardware or purchase separately if needed. The bolt-on attachment type simplifies securing the regulator to the door frame. No installation instructions are included, so consulting a repair manual or professional guidance is recommended for proper alignment and operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-517 window regulator undergoes quality checks to ensure durability and reliable performance. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.