Dorman 740-399 Window Regulator - Front Right

Overview of Dorman 740-399 Manual Window Regulator

The Dorman 740-399 is a manual window regulator designed for select Chevrolet and Pontiac models. This replacement part ensures smooth window operation without the need for a motor, making it suitable for vehicles with manual window systems.

• Compatible with Chevrolet Cobalt, Pontiac G4, G5, and Pursuit models
• Manual window operation type, no motor included
• Durable metal and plastic frame construction
• Plastic gear material for reliable gear engagement
• Bolt-on attachment type for secure installation
• Package includes one manual window regulator

Product Details and Specifications

The Dorman 740-399 window regulator features a combination of metal and plastic frame materials, providing a balance of strength and lightweight design. The gear mechanism is made from plastic, which is engineered to engage smoothly with the window mechanism. This part is designed for manual window operation, meaning it does not include a motor or wiring components. The bolt-on attachment type allows for a straightforward replacement process, although mounting hardware and installation instructions are not included. This regulator is specifically engineered to fit Chevrolet Cobalt, Pontiac G4, G5, and Pursuit models, ensuring compatibility and proper function.

Common Applications and Problem Resolution

• Restores manual window functionality in Chevrolet Cobalt and Pontiac G4, G5, Pursuit vehicles
• Replaces worn or broken window regulators causing window slippage or failure
• Addresses issues with manual window operation where the window does not move smoothly
• Eliminates rattling or loose window movement due to damaged regulator components
• Provides a cost-effective solution for manual window repair without motor replacement

Installation Notes and Tips

Installation of the Dorman 740-399 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware and installation instructions are not included, it is recommended to retain original hardware or acquire compatible bolts for installation. Proper alignment of the regulator frame is essential to ensure smooth window operation. Professional installation or consultation of a repair manual specific to Chevrolet Cobalt or Pontiac G4, G5, Pursuit models is advised for best results.

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 740-399 are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Users should verify warranty terms at the time of purchase or consult official Dorman resources for comprehensive coverage information.