ACI 81374 Window Regulator - Rear Left

Reliable Rear Left Power Window Regulator for Ford, Lincoln, Mercury

The ACI 81374 power window regulator is designed to restore smooth window operation on the rear left door of select Ford, Lincoln, and Mercury vehicles. This new window regulator meets or exceeds OEM standards, ensuring dependable performance for your Fusion, Milan, MKZ, or Zephyr.

• Mounting position: Rear left door
• Compatible with Ford Fusion, Lincoln MKZ, Mercury Milan, and Zephyr models
• Power window operation type
• New part, not remanufactured
• Mounting hardware and motor not included
• Meets or exceeds OEM quality standards

About the ACI Window Regulator Product Line

The ACI Window Regulator line focuses on delivering precise fit and reliable window movement for a variety of vehicle makes and models. This product line includes regulators designed specifically for power window systems, such as the 81374, which is engineered for rear left door applications. Each part is manufactured to meet or exceed original equipment manufacturer specifications, providing a direct replacement solution for body door repairs.

Product Details and Compatibility

The ACI 81374 window regulator is a new, power-operated component intended for the rear left door. It is compatible with multiple Ford, Lincoln, and Mercury vehicles, including the Ford Fusion, Lincoln MKZ, Mercury Milan, and Mercury Zephyr. This part does not include the motor or mounting hardware, so those components must be sourced separately if needed. Designed to meet or exceed OEM standards, this regulator ensures consistent window operation and durability.

Common Issues Addressed by This Window Regulator

• Window stuck in the up or down position on the rear left door
• Intermittent or slow window movement
• Grinding or unusual noises when operating the power window
• Window falling inside the door panel
• Failure of the window to stay in place when raised

Installation Notes and Tips

• Verify the mounting position is rear left before installation
• Motor and mounting hardware are not included; ensure you have these parts if replacement is necessary
• Disconnect the vehicle battery before beginning installation to avoid electrical hazards
• Follow vehicle-specific service manual instructions for removal and installation
• Test window operation before reassembling the door panel

Quality Assurance and Warranty

The ACI 81374 window regulator is a new part that meets or exceeds OEM quality standards, providing reliable performance for your vehicle. While mounting hardware and motor are not included, the regulator itself is manufactured to strict quality controls. Please refer to the product warranty information provided by ACI for coverage details.