Dorman 740-386 Window Regulator - Rear Left

Reliable Manual Window Regulator for Chevrolet and GMC Trucks

The Dorman 740-386 manual window regulator is designed to restore smooth window operation in select Chevrolet and GMC trucks. Engineered with durable materials, this regulator ensures consistent performance for your vehicle's manual window system.

• Compatible with Chevrolet Cheyenne, Silverado 1500, 2500, 2500 HD, 3500 HD and GMC Sierra 1500, 2500 HD, 3500 HD models
• Manual window operation type without motor included
• Durable plastic gear and mixed metal and plastic frame construction
• Bolt-on attachment type for secure installation
• Includes one manual window regulator (regulator only), no mounting hardware or installation instructions included

Durable Construction and Design Features

The Dorman 740-386 window regulator features a plastic gear mechanism designed to provide reliable manual window movement. Its frame combines metal and plastic materials to balance strength and weight, ensuring long-lasting durability. The bolt-on attachment type allows for a secure fitment in the door assembly of compatible Chevrolet and GMC trucks. This part does not include a motor or wiring, as it is intended for manual window systems only.

Compatible Vehicles and Applications

This manual window regulator is compatible with a range of Chevrolet and GMC trucks, including the Chevrolet Cheyenne, Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500 HD, and GMC Sierra 1500, Sierra 2500 HD, Sierra 3500 HD. It is designed specifically for manual window operation, making it suitable for vehicles equipped without power window motors.

• Restores manual window functionality in Chevrolet Silverado and GMC Sierra trucks
• Replaces worn or damaged window regulators causing window binding or failure
• Addresses issues with manual window operation such as sticking or uneven movement
• Ideal for repairing door window mechanisms without power window motors

Installation Notes and Tips

Installation of the Dorman 740-386 manual window regulator requires removal of the door panel and careful alignment of the regulator within the door frame. Since mounting hardware and installation instructions are not included, it is recommended to retain original hardware or source compatible bolts for installation. Proper alignment and secure bolt-on attachment are essential for smooth window operation.

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 740-386 are not provided, Dorman typically offers limited warranties covering defects in materials and workmanship. Using this manual window regulator helps maintain the integrity of your Chevrolet or GMC truck’s door system.