Dorman 740-432 Window Regulator - Front Left

Reliable Electric Window Regulator for Chevrolet, GMC, and Oldsmobile

The Dorman 740-432 window regulator is designed to restore smooth electric window operation in select Chevrolet, GMC, and Oldsmobile models. Engineered with durable materials, this power window regulator offers a bolt-on installation solution for vehicles like the Chevrolet S10 Blazer and GMC Jimmy.

Key Features of the Dorman 740-432 Window Regulator

• Electric window operation type for seamless power window control
• Gear constructed from plastic for consistent engagement
• Frame made from a combination of metal and plastic for strength and durability
• Bolt-on attachment type for straightforward installation
• Includes one power regulator unit; mounting hardware and motor not included

Detailed Product Description

The Dorman 740-432 window regulator is specifically designed for electric window systems in Chevrolet, GMC, and Oldsmobile vehicles, including models such as the Bravada, Jimmy, S10, S10 Blazer, S15, S15 Jimmy, and Sonoma. The regulator features a plastic gear that meshes smoothly with the window mechanism, supported by a robust frame combining metal and plastic components to balance durability and weight. This part is a bolt-on replacement, allowing for a direct swap with the original regulator without modification. Note that this unit does not include the motor or mounting hardware, so those components must be sourced separately if needed.

Common Issues Addressed by This Window Regulator

• Electric window failing to move up or down
• Window glass becoming stuck or moving unevenly
• Grinding or clicking noises during window operation
• Loose or wobbly window movement
• Broken or worn window regulator gear components

Installation Notes and Tips

• Ensure the vehicle is compatible: Chevrolet, GMC, or Oldsmobile models listed in the fitment
• Use appropriate tools for bolt-on installation; no drilling or modifications required
• Verify the motor and mounting hardware are available before installation, as they are not included
• Follow vehicle-specific service manual instructions for window regulator replacement
• Handle the plastic gear carefully to avoid damage during installation

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-432 window regulator undergoes quality checks to ensure reliable performance in electric window systems. While installation instructions are not included, professional installation is recommended. Warranty coverage details can be obtained from the product packaging or Dorman's official resources.