ACI
Window Regulator

ACI 380204 Window Regulator - Rear Left

Brand ACI 66223
Friction Material Thickness Natural
Inside Diameter (in) 0.402 in
Material Copper
Outer Diameter (in) 0.666 in
Package Contents 2 Brake Hose Washers
Thickness (in) 0.047 in
Type Washer
Product line Window Regulator
Fits 8 vehicles

OE direct replacement. Meets OEM standards for a straightforward replacement.

Power operation. Built for power window systems.

Plastic gear. Lightweight gear construction for smooth regulator movement.

Cross-references ACI 380204, WAI WPR6132LB and 670450G for the same application. See all 7.

$49.95Free shipping
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Rear Left Power Window Regulator for Mazda 3

Restore rear window operation with this ACI power window regulator, part number 380204. It is a new, OE-style replacement for the rear left position and is built to meet or exceed OEM requirements for proper fit and function.

Compatible with 2010-2013 Mazda 3 and 2010-2013 Mazda 3 Sport, this window regulator is a direct-fit solution for rear left power window service. The ACI Window Regulator line focuses on application-specific replacement parts for dependable operation in the correct vehicle position.

Key Features

  • Brand: ACI Window Regulator
  • Part number: 380204
  • Power window regulator for the rear left door
  • New replacement part
  • Plastic gear construction
  • Motor not included
  • Meets or exceeds OEM specifications
  • Direct-fit body and door application

Detailed Description

ACI 380204 is a rear left power window regulator engineered for 2010-2013 Mazda 3 and Mazda 3 Sport models. It is designed for the body and door application where the original regulator has failed, providing the correct mounting position and power-window operation without changing the vehicle’s factory configuration. This part cross-references WAI WPR6132LB for the same application.

Common Repair Uses

  • Window glass will not raise or lower from the rear left switch
  • Grinding or slipping from a worn regulator gear
  • Intermittent or slow rear window movement
  • Broken regulator mechanism inside the door
  • Loss of rear left power window function on a Mazda 3 or Mazda 3 Sport

Installation Notes and Tips

Verify rear left fitment before installation on 2010-2013 Mazda 3 and Mazda 3 Sport models. Transfer the existing motor if required by the vehicle configuration, since the motor is not included. Inspect the window tracks, guides, and electrical connector condition during service to help ensure smooth operation after replacement.

Quality Assurance

This ACI window regulator is a new replacement part built to meet or exceed OEM standards for fit and function. It is intended for direct replacement in the specified Mazda applications and supports proper rear left power window operation.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2013Mazda3Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2013Mazda3 SportRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2012Mazda3Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2012Mazda3 SportRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2011Mazda3Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2011Mazda3 SportRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2010Mazda3Rear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
2010Mazda3 SportRear LeftWindow regulator suitable for vehicle's proper fit and function.; Window Regulator
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 380204WAI — WPR6132LB670450G75249766590551BBM473590D380204