WAI WPR4777RB Window Regulator - Rear Right

Rear Right Window Regulator for Explorer and Mountaineer

Restore rear passenger window operation with this WAI window regulator, part number WPR4777RB. It is a direct-fit power window regulator for the rear right door on select Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications.

• Power window regulator, regulator only
• Rear right position
• Fits 2001-2005 Ford Explorer Sport Trac, rear right
• Fits 1996-2001 Ford Explorer, rear right
• Fits 1997-2001 Mercury Mountaineer, rear right
• WAI part number WPR4777RB for application-specific ordering

Application Details

This WPR4777RB window regulator is built for vehicles with power rear window operation on the right side. It matches the listed Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer fitments, making it a focused replacement for rear right window service on these platforms. If you are searching for a rear right power window regulator for a 1996-2001 Ford Explorer or a 1997-2001 Mercury Mountaineer, WPR4777RB is the correct catalog reference.

Common Problems It Can Address

• Rear window will not move up or down
• Window moves slowly or binds in the track
• Intermittent power window operation at the rear right door
• Broken or worn regulator mechanism
• Uneven window travel or window dropping inside the door

Installation Notes and Tips

Verify the rear right door application before installation and compare the original regulator to WPR4777RB for mounting points and connector style. Inspect the window glass, guides, and door hardware for wear before reassembly so the replacement regulator can operate smoothly after installation.

Quality Assurance

WAI supplies automotive electrical and window lift components for service replacement use. Part number WPR4777RB is cataloged for the listed Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer rear right applications.