HomeACI 384991 Window Regulator - Rear Right
Part #: DH3

ACI 384991 Window Regulator - Rear Right

Window Regulator
7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Window Regulator
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Reliable Power Window Regulator for Toyota Highlander

The ACI Window Regulator 384991 is designed specifically for the rear right door of Toyota Highlander models. This power window regulator ensures smooth and consistent window operation, restoring functionality to your vehicle's rear right power window system.

  • Compatible with Toyota Highlander rear right door
  • Equipped with hardened steel gear for durability
  • Power window operation type for seamless control
  • New part that meets or exceeds OEM standards
  • Mounting hardware and motor not included

About the ACI Window Regulator Product Line

The ACI Window Regulator line focuses on delivering reliable window movement components that meet or exceed original equipment manufacturer specifications. This product line emphasizes durability and precise fitment, making it a suitable replacement for power window regulators in various vehicle models, including the Toyota Highlander. The 384991 part number is part of this line, offering a hardened steel gear for enhanced longevity and consistent performance.

Product Details and Specifications

This power window regulator is engineered for the rear right mounting position on Toyota Highlander vehicles. It features a hardened steel gear that provides strength and resistance to wear, ensuring long-term reliability. The part is sold as a new unit and does not include the motor or mounting hardware, so these components must be sourced separately if needed. Designed to meet or exceed OEM quality standards, this window regulator supports smooth and efficient window operation.

Common Issues Addressed by This Window Regulator

  • Power window failing to move up or down in the rear right door
  • Grinding or unusual noises during window operation
  • Window stuck in one position due to worn regulator gears
  • Intermittent window movement or slow response
  • Replacement needed after motor removal or failure

Installation Notes and Tips

  • Ensure compatibility with Toyota Highlander rear right door before installation
  • Mounting hardware and motor are not included; verify availability prior to installation
  • Carefully remove the door panel to access the window regulator assembly
  • Handle the hardened steel gear with care to avoid damage during installation
  • Test window operation after installation to confirm proper function

Quality Assurance and Warranty

The ACI Window Regulator 384991 is a new replacement part that meets or exceeds OEM standards for fit, form, and function. While mounting hardware and motor are not included, the regulator itself is manufactured to provide reliable performance. Please consult the product documentation or supplier for specific warranty details related to this part.

BrandStandard Ignition
Part NumberDH3
PositionWindow Regulator
Length - Inches20"

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2007ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2006ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2005ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2004ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2003ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2002ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2001ToyotaHighlanderRear RightWindow regulator suitable for vehicle's proper fit and function.; Window Regulator

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12497161F100028093410593773-39008191127893300063796020DH4PBE1100ED-6112BFG2165MD005134

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.