ACI 81764 Window Regulator - Front Left

ACI 81764 Front Left Window Regulator

Restore smooth power window operation with this ACI Window Regulator, part number 81764. It is a new, OE-style replacement for the front left door and is built with a hardened steel gear for dependable window movement in daily use.

Key Features

• Power window regulator for the front left position
• Hardened steel gear for durable gear engagement
• New replacement part that meets or exceeds OEM requirements
• Motor not included
• Mounting hardware not included

Product Details

ACI 81764 is a power window regulator designed for Mercedes-Benz ML-Class applications, including ML320, ML430, ML500, ML55 AMG, and ML350 front left door service. This window regulator is engineered for proper fit and function and is a direct replacement choice for vehicles needing reliable glass travel and consistent power window performance. The hardened steel gear supports stable operation, while the new construction helps restore factory-style movement in the door assembly. This part cross-references Continental WR40404 for the same application.

Common Problems It Can Help Solve

• Window glass that will not move up or down with the switch
• Slow, uneven, or jerky window travel
• Grinding or slipping sounds from the door regulator mechanism
• Window dropping out of position or failing to stay aligned
• Loss of power window function on the front left door

Installation Notes

Fits 2003-2005 Mercedes-Benz ML350, front left. Fits 2002-2005 Mercedes-Benz ML500, front left. Fits 1998-2003 Mercedes-Benz ML320, front left. Fits 2000-2003 Mercedes-Benz ML55 AMG, front left. Fits 1999-2001 Mercedes-Benz ML430, front left. Verify door configuration and compare the original regulator before installation. Motor is not included, so reuse or replace the existing motor as needed. Mounting hardware is not included.

Quality Assurance

This ACI window regulator is a new part built to meet or exceed OEM specifications for fit and function. It is intended for Mercedes-Benz ML-Class front left applications and uses a hardened steel gear to support consistent operation.