Dorman 748-402 Power Window Motor and Regulator Assembly - Front Left

Reliable Window Motor and Regulator Assembly for Kia Magentis and Optima

The Dorman 748-402 window motor and regulator assembly is designed to restore smooth window operation in Kia Magentis and Optima models. Engineered with durable plastic gears and a bolt attachment type, this assembly provides a direct replacement for your vehicle's electrical window components.

Key Features of the Dorman 748-402 Window Regulator

• Gear material constructed from durable plastic for consistent performance
• Bolt attachment type ensures secure and stable mounting
• Includes the window regulator integrated with the motor for a complete assembly
• Compatible specifically with Kia Magentis and Optima models
• Does not include mounting hardware or installation instructions

Detailed Product Description

This window motor and regulator assembly (part number 748-402) by Dorman is engineered to replace faulty or worn-out window components in Kia Magentis and Optima vehicles. The plastic gear material balances durability with smooth operation, while the bolt attachment type allows for a secure fitment. The assembly includes the regulator and motor combined, eliminating the need to source parts separately. Although mounting hardware and installation instructions are not included, the design matches OEM specifications to facilitate straightforward installation by experienced technicians.

Common Issues Addressed by This Window Motor and Regulator Assembly

• Window glass failing to move up or down
• Intermittent or non-responsive window motor operation
• Grinding or unusual noises during window movement
• Loose or unstable window glass alignment
• Complete failure of the window regulator mechanism

Installation Notes and Tips

Installation of the Dorman 748-402 window motor and regulator assembly requires removal of the door panel and disconnection of the existing window motor and regulator. Since mounting hardware and instructions are not included, it is recommended to retain original bolts or source compatible hardware. Proper alignment of the regulator is critical to ensure smooth window operation. Professional installation or consultation of a vehicle-specific repair manual is advised for best results.

Quality Assurance and Warranty Information

Dorman manufactures this window motor and regulator assembly to meet or exceed OEM standards for fit, form, 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 at the time of purchase.