ACI 81931 Window Regulator - Front Left or Rear Left

Reliable Manual Window Regulator for Ford Bronco and F-Series

The ACI Window Regulator 81931 is designed for manual window operation on select Ford trucks and SUVs. Engineered to meet or exceed OEM standards, this new window regulator ensures smooth and dependable window movement for your Ford Bronco, F-150, F-250, or F-350.

• Compatible with front left and rear left mounting positions
• Constructed with hardened steel gear for durability
• Manual window operation type, motor not included
• New part, not remanufactured
• Mounting hardware not included

About the ACI Window Regulator Product Line

The ACI Window Regulator line focuses on providing replacement window regulators that maintain factory specifications for fit and function. This product line offers manual and power window regulators designed to restore proper window operation on a variety of vehicle makes and models. The 81931 part is part of this line, delivering a reliable manual regulator solution for Ford trucks.

Product Details and Specifications

This manual window regulator features a hardened steel gear that enhances strength and longevity, reducing wear over time. It is designed specifically for the front left and rear left doors of Ford Bronco, F-150, F-250, and F-350 models. The part number 81931 identifies this exact fitment and configuration. Note that this regulator does not include a motor or mounting hardware, so those components must be sourced separately if needed.

Common Applications and Problem Resolution

• Restores manual window operation on Ford Bronco and F-Series trucks
• Replaces worn or broken window regulators causing window slippage or jamming
• Fixes windows that do not stay in position or move unevenly
• Addresses issues with manual window crank resistance or failure
• Provides a durable replacement for rusted or damaged regulator gears

Installation Notes and Tips

Installation requires removal of the door panel and careful alignment of the regulator in the mounting position. Since mounting hardware is not included, retain original fasteners or acquire compatible replacements. Verify the mounting position as front left or rear left before installation. Lubricate moving parts as needed to ensure smooth operation. This part is designed for manual window systems and does not include a motor.

Quality Assurance and Warranty

The ACI Window Regulator 81931 is a new replacement part that meets or exceeds OEM quality standards for fit and function. It undergoes quality checks to ensure durability and reliable performance. Please consult the product packaging or manufacturer for specific warranty details.