ACI 384145 Window Regulator - Rear Right

Rear Right Power Window Regulator for Grand Prix

Restore smooth rear passenger window movement with this ACI power window regulator, part number 384145. It is a new, OE-style replacement built for the rear right position on the 2004-2008 Pontiac Grand Prix and meets or exceeds OEM requirements.

ACI Window Regulator 384145 is part of ACI’s window regulator line, focused on direct-fit body hardware for door glass operation. This unit is specified as a power window regulator and does not include the motor, making it a practical replacement when the regulator mechanism has failed but the motor remains serviceable.

• Fits 2004-2008 Pontiac Grand Prix, rear right
• Power window regulator for rear passenger-side glass movement
• New replacement part built to meet or exceed OEM specifications
• Motor not included
• Mounting hardware not included

Detailed Product Overview

This ACI 384145 window regulator is engineered for the rear right door on the Pontiac Grand Prix, providing the mechanical support needed to raise and lower the window glass with power operation. If you are searching for a rear right window regulator for 2004-2008 Pontiac Grand Prix models, this part number 384145 is the direct application to review. It is also referenced under interchange number D384145 for the same application.

Common Repair Uses

• Window glass will not move up or down from the switch
• Slow, uneven, or binding rear window operation
• Broken regulator cable, track, or lift mechanism
• Window drops into the door or will not stay aligned

Installation Notes

Verify rear right door fitment before installation and compare the original regulator design, connector layout, and mounting points to the replacement unit. Because mounting hardware is not included, reuse or source the required fasteners as needed. Inspect the window motor, guides, and glass channels during service to confirm the full repair.

Quality Assurance

This ACI window regulator is a new replacement part that meets or exceeds OEM specifications for the listed application. It is intended for direct replacement use on the rear right door of the Pontiac Grand Prix, with fitment confirmed for 2004-2008 model years.