ACI 380172 Window Regulator - Front Left

Front Left Power Window Regulator for Discovery

This ACI Window Regulator, part number 380172, is a new power window regulator for the front left door. It is built with a hardened steel gear and meets or exceeds OEM requirements for fit and function.

Compatible with 1995-2004 Land Rover Discovery front left applications, this ACI 380172 replacement is a direct-fit solution for restoring smooth power window movement in the driver-side front door.

Key Features

• Power window regulator for the front left position
• Hardened steel gear for durable operation
• Motor not included
• New construction
• Meets or exceeds OEM specifications
• Direct replacement for Land Rover Discovery front left fitment

Product Details

The ACI Window Regulator line focuses on replacement regulators built for proper fit and function in body and door applications. Part number 380172 is a power window regulator designed for the front left door on the Land Rover Discovery, with a hardened steel gear to support consistent window travel and long-term mechanical performance. If you are searching for a Land Rover Discovery window regulator front left or an ACI 380172 power window regulator, this part matches the listed application.

This part cross-references WAI WPR5483L for the same application.

Common Problems It Can Help Solve

• Window glass that will not move up or down with the switch
• Slow, uneven, or binding window travel
• Grinding or slipping from worn regulator gears
• Loss of power window function in the front left door
• Failure caused by worn internal regulator components

Installation Notes

Verify vehicle fitment by year, make, model, and front left position before installation. Transfer or reuse the existing window motor if it is serviceable, since the motor is not included. Confirm the window tracks, guides, and electrical connections are in good condition before completing the repair.

Quality Assurance

This ACI replacement window regulator is new and built to meet or exceed OEM specifications for the listed application. It is intended as a direct replacement for 1995-2004 Land Rover Discovery front left power window regulator service.