Dorman 740-378 Window Regulator - Rear Left

Reliable Window Regulator for Oldsmobile Aurora

The Dorman 740-378 window regulator is designed specifically for the Oldsmobile Aurora, providing a durable and efficient solution for electric window operation. This power window regulator offers a bolt-on attachment type and features a combination of metal and plastic frame materials for balanced strength and flexibility.

Key Features of Dorman 740-378 Window Regulator

• Compatible with Oldsmobile Aurora models
• Electric window operation type for smooth functionality
• Bolt-on attachment for straightforward installation
• Durable frame constructed from both metal and plastic materials
• Plastic gear material designed for reliable performance
• Does not include motor or mounting hardware
• Package contains one power window regulator unit

Detailed Product Description

The Dorman 740-378 window regulator is engineered to restore proper window movement in the Oldsmobile Aurora. Its electric operation type ensures seamless control of the window glass, while the plastic gear material reduces noise and wear during use. The frame combines metal and plastic components to provide structural integrity without adding unnecessary weight. This part is designed for bolt-on installation, making it a practical replacement option for technicians and DIY enthusiasts familiar with Oldsmobile Aurora door components. Note that the motor and mounting hardware are not included, so these may need to be sourced separately depending on your repair needs.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Intermittent or non-functioning electric window operation
• Grinding or unusual noises during window movement
• Loose or unstable window glass within the door frame
• Broken or worn plastic gears causing regulator failure

Installation Notes and Tips

Installation requires removal of the door panel and careful handling of the window glass. Since mounting hardware is not included, retain original bolts or purchase compatible fasteners separately. The bolt-on attachment type simplifies alignment, but ensure all connections are secure to prevent window misalignment. Professional installation is recommended if unfamiliar with electric window regulator replacement procedures.

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 740-378 are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier at the time of purchase.