ACI
Window Regulator

ACI 384334 Window Regulator - Rear Left

Brand ACI TC2119
Bolt Length 7.874
Bolt Length 200.0
Bolt Thread Diameter 0.394
Bolt Thread Diameter 10.0
Bolt Thread Pitch 1.5
Bolt Thread Size M10
Bolts Included No
Bushing Color Black
Bushing Inside Diameter 0.335
Bushing Inside Diameter 8.5
Bushing Material Natural Rubber (NR)
Bushings Included Yes
Dust Boot Included No
End 1 Type Male Threaded
End 2 Type Bushing
Front Or Rear Suspension Rear
Grade Type Regular
Grease Fittings Included No
Greaseable No
Item Grade Standard Replacement
Length 7.874
Length 200.0
Locking Nuts Included Yes
Position(s) Rear
Washers Included No
Weight 0.22
Product line Window Regulator
Fits 30 vehicles

OE direct replacement. Meets OEM standards for a dependable fit and function.

Hardened steel gear. Built for smooth, reliable window movement.

Power window regulator. Restores powered window operation with a new unit.

Cross-references ACI 384334, 1L2Z7827009AB and 3L2Z7827001BA for the same application. See all 10.

$53.50Free shipping
In stock · usually ships same day before 1pm CST
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Order total $53.50
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Free returns within 60 days if it doesn't fit when fitment is verified.

Rear Left Power Window Regulator for Explorer, Mountaineer, Aviator

Restore rear left window movement with this ACI power window regulator, part number 384334. It is a new replacement window regulator with a hardened steel gear and motor not included, built to meet or exceed OEM requirements for proper fit and function.

Key Features

  • Power window regulator for the rear left door
  • Hardened steel gear for durable operation
  • Motor not included
  • New replacement part
  • Meets or exceeds OEM specifications
  • Compatible with Ford Explorer, Mercury Mountaineer, and Lincoln Aviator applications

Product Details

ACI Window Regulator 384334 is a body and door replacement part for vehicles with power rear window operation. This regulator is built for the rear left position and is intended for 2002-2010 Ford Explorer, 2002-2010 Mercury Mountaineer, and 2003-2005 Lincoln Aviator models. The hardened steel gear supports consistent window travel and reliable engagement with the window mechanism. ACI 384334 is a direct-fit style replacement for the listed applications and is identified by OE-style cross references for the same use case.

This part cross-references 1L2Z7827009AB and H384334 for the same application.

Common Repair Symptoms

  • Rear left window will not raise or lower
  • Window moves slowly or stops partway
  • Grinding or slipping noise from the door panel
  • Window drops into the door or sits unevenly
  • Intermittent power window operation at the rear left door

Installation Notes

Install in the rear left door only. Verify power window configuration and match the vehicle application before installation. Because the motor is not included, reuse the existing motor if it is serviceable or transfer the correct motor assembly as required by the vehicle. Confirm regulator alignment and window track condition during installation to help ensure smooth operation.

Quality Assurance

ACI 384334 is a new part built to meet or exceed OEM specifications for the listed applications. It is engineered for proper fit and function in Ford Explorer, Mercury Mountaineer, and Lincoln Aviator rear left power window systems.

This part fits 30 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModel# DoorsLitersCylindersPositionNotes
2010FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2010FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2010MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2009FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2009FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2009MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2008FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2008FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2008MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2007FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2007FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2007MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2006FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2006FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2006MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2005FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2005FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2005LincolnAviatorRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2005MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2004FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2004FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2004LincolnAviatorRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2004MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2003FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2003FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2003LincolnAviatorRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2003MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2002FordExplorer4 Door4.0LV6Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2002FordExplorer4 Door4.6LV8Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2002MercuryMountaineerRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 3843341L2Z7827009AB3L2Z7827001BA3L2Z7827009BA4L2Z7827001BA4L2Z7827009BA6L2Z7827001AA6L2Z7827001BA6L2Z7827009AAH384334