WAI WPR0666LM Window Motor and Regulator Assembly - Front Left

Front Left Window Motor and Regulator Assembly

The WAI WPR0666LM is a front left power window regulator and motor assembly for select Ford Escape and Mercury Mariner applications. It is built for vehicles that need a direct replacement for the driver-side window lift system, with fitment covering 2001-2007 Ford Escape and 2005-2007 Mercury Mariner.

Key Features

• Part number WPR0666LM for easy identification
• Front left power window regulator and motor assembly
• Fits 2001-2007 Ford Escape, front left
• Fits 2005-2007 Mercury Mariner, front left
• OE-style replacement for the original window lift assembly

Detailed Description

This WAI window motor and regulator assembly is made for the front left door and is listed for Ford Escape and Mercury Mariner models across the stated year ranges. If you are searching for a Ford Escape front left window motor and regulator assembly or a Mercury Mariner front left power window regulator and motor assembly, WPR0666LM provides the correct application match by vehicle, model, and position. This part cross-references Dorman (e.g., 741-638, 741-639) for the same application.

Common Issues It May Address

• Window glass that will not move up or down from the switch
• Slow, uneven, or noisy window operation
• Window that drops or binds in the door track
• Failed motor or worn regulator components in the front left door
• Intermittent power window response on the driver side

Installation Notes and Tips

Verify the vehicle year, make, model, and front left position before ordering. Compare the original assembly to WPR0666LM to confirm connector style, mounting points, and door configuration match the vehicle. Professional installation is recommended for proper alignment and window operation after replacement.

Quality Assurance

WAI manufactures electrical and rotating components for automotive replacement applications, and this assembly is cataloged for the specified Ford Escape and Mercury Mariner fitments. Part number WPR0666LM should be matched to the vehicle application before installation.