Dorman 740-588 Window Regulator - Front Left

Reliable Manual Window Regulator for Oldsmobile Alero and Pontiac Grand Am

The Dorman 740-588 manual window regulator is designed to restore smooth window operation in select Oldsmobile and Pontiac vehicles. Engineered with durable materials, this bolt-on regulator provides a dependable solution for manual window systems.

Key Features of the Dorman 740-588 Window Regulator

• Compatible with Oldsmobile Alero and Pontiac Grand Am models
• Manual window operation type for vehicles without power windows
• Durable metal and plastic frame construction for strength and longevity
• Plastic gear material designed for smooth and quiet function
• Bolt-on attachment type for straightforward installation
• Includes one manual regulator without motor or mounting hardware

Detailed Description of the Dorman 740-588 Window Regulator

This manual window regulator from Dorman is specifically engineered for use in Oldsmobile Alero and Pontiac Grand Am vehicles. The combination of metal and plastic frame materials ensures a balance of rigidity and weight savings, while the plastic gear reduces noise during operation. Designed as a bolt-on replacement, the 740-588 part number allows for direct fitment without modification. Note that this regulator does not include a motor or mounting hardware, reflecting its manual operation design and requiring existing hardware for installation.

Common Applications and Issues Addressed

• Restores manual window movement when the original regulator fails or binds
• Eliminates window slippage or uneven movement in Oldsmobile Alero and Pontiac Grand Am
• Replaces worn or broken plastic gears causing window operation issues
• Addresses rattling or loose window glass due to damaged regulator frame
• Provides a cost-effective repair option for manual window systems

Installation Notes and Tips

Installation of the Dorman 740-588 window regulator requires removal of the door panel and existing regulator. Since mounting hardware is not included, retain original bolts and fasteners or source replacements as needed. The bolt-on design facilitates alignment and secure attachment. No motor is included, so this part is intended for manual window crank systems only. Professional installation is recommended for proper fit and function.

Quality Assurance and Warranty Information

Dorman manufactures this window regulator to meet or exceed OEM standards for fit and function. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.