ACI 81779 Window Regulator - Rear Right

Rear Right Power Window Regulator for Mercedes-Benz E-Class

ACI Window Regulator 81779 is a new rear right power window regulator built for proper fit and function in select Mercedes-Benz E-Class applications. It meets or exceeds OEM requirements and is intended for vehicles that need a direct replacement for a failing rear passenger-side window regulator.

Compatible with 1996-2002 Mercedes-Benz E320, 1998-2002 Mercedes-Benz E430, 1999-2002 Mercedes-Benz E55 AMG, 1996-1999 Mercedes-Benz E300, and 1997-1999 Mercedes-Benz E420, this ACI Window Regulator 81779 supports power window operation without the motor included.

Key Features

• Rear right mounting position for the listed Mercedes-Benz applications
• Power window regulator design
• New replacement part
• Meets or exceeds OEM requirements
• Motor not included
• Mounting hardware not included

Product Details

ACI 81779 is a power window regulator for the rear right door on select Mercedes-Benz E320, E430, E55 AMG, E300, and E420 models. As a direct-fit replacement, it is intended to restore smooth glass movement when the original regulator is worn, damaged, or no longer operating correctly. This part cross-references Genuine 2107301646 and VDO WR40453 for the same application.

The ACI Window Regulator line focuses on replacement regulators built for vehicle-specific fitment and dependable operation. For shoppers searching by application, this part is a rear right power window regulator for Mercedes-Benz E320, Mercedes-Benz E430, and related E-Class models from the listed years.

What It Helps Fix

• Window glass that will not raise or lower properly
• Slow, uneven, or binding rear window movement
• Broken regulator tracks, cables, or lift mechanisms
• Window dropping into the door after regulator failure
• Noise or resistance during power window operation

Installation Notes and Tips

Verify rear right door fitment before installation and compare the original regulator to the replacement part number 81779. Because the motor is not included, reuse or replace the existing motor as needed. Confirm the window glass, guides, and door components are in good condition before final assembly.

Quality Assurance

ACI 81779 is a new replacement window regulator that meets or exceeds OEM requirements for the listed Mercedes-Benz applications. Use the vehicle fitment details and OE cross-reference numbers to confirm the correct part before installation.