Dorman 748-403 Window Motor and Regulator Assembly - Front Right

Dorman 748-403 Window Motor and Regulator Assembly

Dorman 748-403 is a replacement power window motor and regulator assembly for the front right door. It is precision-engineered and extensively tested to match the stock window regulator’s fit, function, and performance on select Kia Magentis and Kia Optima applications.

Key Features

• Replacement window motor and regulator assembly for the front right position
• Precision-engineered for direct-fit installation on listed Kia applications
• Extensively tested to match OE-style fit, function, and performance
• Plastic gear material
• Bolt attachment type
• Package contents: 1 window regulator with motor
• Regulator included

Detailed Description

This Dorman 748-403 window motor and regulator assembly is built for drivers needing a direct replacement for a worn or failed front right power window unit. It is engineered for 2008-2010 Kia Magentis, 2007-2010 Kia Optima, and 2006 Kia Optima front right applications, including the 2006 Optima with 5th digit of VIN E. The assembly is designed to restore normal window movement and maintain the original fit and operation expected from the factory-style regulator setup.

This part cross-references ACI 389451 for the same application. The Dorman 748-403 part number is also commonly referenced when searching for a front right Kia Optima window regulator with motor or a Kia Magentis power window regulator assembly.

What It Helps Fix

• Window that will not raise or lower properly
• Slow, uneven, or noisy window movement
• Failed window motor or regulator mechanism
• Binding or slipping window operation
• Loss of power window function at the front right door

Installation Notes and Tips

Verify vehicle fitment by year, model, position, and VIN note before installation. This assembly uses a bolt attachment type and does not include mounting hardware or installation instructions. Inspect the window glass, tracks, and electrical connector condition before replacing the unit to help ensure proper operation after installation.

Quality Assurance

Dorman tests this replacement assembly to match the fit, function, and performance of the original window regulator on the listed applications. The Dorman 748-403 is intended as a direct replacement for specific Kia Magentis and Kia Optima front right applications.