Dorman 740-459 Window Regulator - Front Right

Dorman 740-459 Window Regulator for Mercedes-Benz

This Dorman window regulator is a replacement power window regulator for select Mercedes-Benz models with front right electric window operation. Built with a metal and plastic frame, plastic gear material, and bolt-on attachment type, it is engineered to match the fit, function, and performance of the original regulator on the listed vehicles.

Key Features

• Replacement power window regulator for the front right door
• Electric window operation
• Bolt-on attachment type for direct replacement service
• Metal and plastic frame construction
• Plastic gear material
• Package contents: 1 power regulator
• Motor not included
• Mounting hardware not included

Detailed Description

The Dorman 740-459 is a direct-fit window regulator for select Mercedes-Benz S-Class applications, including 1994-1999 Mercedes-Benz S320, S420, S500, and S600, plus 1994-1995 Mercedes-Benz S350 and earlier 300SD, 300SE, 400SE, 400SEL, and 500SEL front right applications. It is precision-engineered and extensively tested to align with the stock regulator’s fit and operating characteristics, making it a practical replacement for worn or failed power window components. This part cross-references Cardone New 82-3443B for the same application.

What It Helps Fix

• Window stuck in the up or down position
• Slow or uneven window movement
• Grinding or slipping during window travel
• Broken regulator gears or worn tracks
• Loss of power window function at the front right door

Installation Notes and Tips

Verify front right fitment before installation on your Mercedes-Benz S320, S420, S500, S600, S350, 300SD, 300SE, 400SE, 400SEL, or 500SEL. This regulator uses a bolt-on design and does not include the motor, so reuse or replace the motor as needed. Installation instructions are not included, and proper door panel removal and window alignment are important for correct operation.

Quality Assurance

Dorman tests this replacement window regulator to match the original part’s fit and function on the specified applications. Part number 740-459 is built as an OE-style replacement for dependable service on the listed Mercedes-Benz front right power window systems.