ACI 388616 Window Motor and Regulator Assembly - Rear Left

Window Motor and Regulator Assembly

ACI 388616 is a new power window motor and regulator assembly built with a hardened steel gear and engineered to meet or exceed OEM requirements. It is a direct-fit replacement for the rear left window assembly on select Nissan full-size SUVs and trucks.

Use this assembly when the original window drive system is worn, noisy, or no longer moves the glass correctly. The motor and regulator are combined in one unit for a straightforward replacement path on compatible applications.

Key Features

• New power window motor and regulator assembly
• Hardened steel gear for durable gear engagement
• Meets or exceeds OEM requirements
• Motor and regulator style construction
• Direct-fit replacement for compatible Nissan applications

Detailed Description

ACI part number 388616 is a power window motor assembly in a motor-and-regulator style configuration. It is built new, not remanufactured, and uses a hardened steel gear to support consistent operation in the window drive system. This assembly is specified for the rear left position on 2005-2015 Nissan Armada, 2004-2015 Nissan TITAN, and 2004 Nissan Pathfinder Armada. For buyers searching for a Nissan Armada rear left window motor and regulator assembly or a Nissan TITAN rear left window assembly, 388616 provides an OE-style replacement option that aligns with the original application requirements.

This part cross-references WAI WPR4924LMB for the same application.

What It Is Used For

• Restoring window movement when the original motor no longer operates correctly
• Replacing a worn regulator mechanism that causes slow or uneven glass travel
• Addressing gear wear that can create noise or intermittent operation
• Correcting a failed rear left power window assembly on supported Nissan models

Installation Notes and Tips

Verify the vehicle’s rear left application and compare the original connector, mounting points, and regulator style before installation. Confirm fitment against the part number 388616 and the vehicle’s window assembly configuration to ensure the correct replacement for the Nissan Armada, Nissan TITAN, or Pathfinder Armada.

Quality Assurance

ACI states that this assembly meets or exceeds OEM requirements. The part is new and built with a hardened steel gear for the window drive mechanism.