Dorman 740-651 Window Regulator - Front Left

Reliable Manual Window Regulator for Chevrolet and GMC Trucks

The Dorman 740-651 manual window regulator is designed to restore smooth window operation for select Chevrolet and GMC trucks and SUVs. Engineered with durable materials, this bolt-on regulator offers a straightforward replacement solution for vehicles equipped with manual window systems.

• Compatible with Chevrolet and GMC models including Blazer, C10, K5 Blazer, and Suburban variants
• Manual window operation type without motor included
• Durable metal and plastic frame construction for reliable performance
• Bolt-on attachment type for secure installation
• Includes one manual window regulator; mounting hardware and installation instructions not included

Durable Construction and Design Features

The Dorman 740-651 window regulator features a combination of metal and plastic frame materials that provide strength and resistance to wear. The gear mechanism is made of plastic, designed to engage smoothly with the window mechanism. This part is intended for manual window systems and does not include a motor or wiring, making it suitable for vehicles originally equipped with manual crank windows. The bolt-on attachment type ensures a secure fit on compatible Chevrolet and GMC trucks such as the C10, C20, K10, and their Suburban counterparts.

Compatible Vehicles and Applications

This window regulator is compatible with a wide range of Chevrolet and GMC trucks and SUVs, including:

• Chevrolet Blazer, C10, C20, C30, C1500, C2500, C3500, and Suburban models
• GMC Jimmy, K5 Blazer, K10, K20, K30, K1500, K2500, K3500, and Suburban models
• R-series trucks such as R10, R20, R30, R1500, R2500, R3500
• V-series trucks including V10, V20, V30, V1500, V2500, V3500

Common Issues Addressed by This Window Regulator

• Manual window crank becomes difficult or impossible to operate
• Window glass fails to stay in position or moves unevenly
• Grinding or slipping noises when operating the window crank
• Window regulator gear wear or damage causing window malfunction
• Broken or bent regulator frame affecting window alignment

Installation Notes and Tips

The Dorman 740-651 window regulator is designed for bolt-on installation, compatible with factory mounting points on specified Chevrolet and GMC models. Note that mounting hardware and installation instructions are not included, so retaining original hardware or sourcing appropriate fasteners is necessary. Proper alignment of the regulator frame and gear engagement is critical for smooth window operation. It is recommended to test window movement before fully securing the regulator.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this manual window regulator does not include a motor or wiring, it is built with durable materials to provide reliable service life. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.