ACI 81762 Window Regulator - Front Left

Front Left Power Window Regulator for Mercedes-Benz

Restore smooth window movement with this ACI Window Regulator 81762 for the front left door. It is a new power window regulator built with a hardened steel gear and engineered to meet or exceed OEM requirements for proper fit and function.

Compatible with Mercedes-Benz S320, S420, S500, S600, S350, 300SD, 300SE, 400SEL, 500SEL, 600SEC, 600SEL, 600SL, and 400SE applications in the front left position, this ACI Window Regulator line is focused on direct replacement fitment for select Mercedes-Benz door systems.

Key Features

• ACI Window Regulator 81762
• Power window regulator for the front left door
• Hardened steel gear for durable operation
• New replacement part
• Meets or exceeds OEM specifications
• Motor not included
• Mounting hardware not included

Product Details

This power window regulator is designed for Mercedes-Benz body and door applications where the original regulator has worn gears, binding tracks, or inconsistent glass movement. The hardened steel gear supports reliable window travel, while the OE-level design helps maintain proper alignment and operation in the front left door. ACI 81762 is a direct-fit replacement for select 1992-1999 Mercedes-Benz S-Class and related models, including Mercedes-Benz S320, S420, and S500 front left applications.

This part cross-references 11R145 and WR40458 for the same application.

Common Issues It Can Solve

• Window glass that will not raise or lower smoothly
• Grinding or slipping from a worn regulator gear
• Slow, uneven, or intermittent power window movement
• Window dropping out of position in the front left door
• Failure caused by a damaged original regulator assembly

Installation Notes and Tips

• Verify vehicle year, model, and front left door application before installation.
• Transfer the window motor from the original assembly if required, since the motor is not included.
• Inspect the window tracks, guides, and switches before installing the new regulator.
• Use the correct mounting hardware for the vehicle, as hardware is not included.
• Test window travel and alignment after installation to confirm smooth operation.

Quality Assurance

ACI 81762 is a new window regulator built to meet or exceed OEM specifications for fit and function. The ACI Window Regulator line is intended for direct replacement use in select Mercedes-Benz front left door applications.