Range Rover L405 Rear Door Window Mechanism Motor Rear Left N/S CK52-27001-AG

The Range Rover L405 Left Rear Window Regulator with Motor is an original part from the window regulators and motors category, designed for installation on the rear left side of the body. It ensures stable window operation, proper guidance, and secure closing in the driver's side rear door (N/S).

Specifications and technical data

• SKU: CK52-27001-AG
• Mark: Ford
• Condition: Used
• OEM Part Number: CK52-27001-AG
• Substitutable numbers: CK52-27001-AG, CK5227001AG, LR048344
• Location on the vehicle: Rear, Left
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and Function in the Vehicle

The presented rear door window regulator with motor is responsible for the automatic raising and lowering of the window in the Range Rover L405 on the rear left side. The integrated electric drive works with the vehicle's factory installation, enabling smooth window operation from the door control panel and the driver's console.

The vehicle placement is rear – left side, allowing for precise fitting to the specific mounting position without the need for modifications to the mounts or guides.

Construction and Technical Characteristics

The mechanism belongs to the window regulators and motors group, which are components responsible for transferring power from the electric motor to the door window. The construction is prepared to work with the factory control system of the Range Rover L405, maintaining the correct window guidance geometry and appropriate mounting points.

Key functional features:

• Integrated electric motor – provides power to the window without the need for additional mechanical modules.
• Designed for the rear left side – correct placement of mounts and connection points for the electrical system.
• Compatibility with factory controls – works with original switches in the doors and near the driver.

Brand, Origin, and Condition

The part comes from the Ford group, meaning it complies with the manufacturer's requirements regarding quality of workmanship and operating parameters. It is a used part, making it a cost-effective solution while maintaining the original mounting specifications.

A used window regulator with a motor is a good solution in situations where:

• the existing regulator has suffered mechanical or electrical damage,
• there are problems with smooth window movement or complete closing,
• it is important to maintain the original construction and mounting points in the door.

Benefits of Using an Original Regulator

Using an original left rear window regulator in the Range Rover L405 helps reduce the risk of fitting issues that often arise with aftermarket parts. The correct geometry of the guides and the appropriately selected motor torque contribute to:

• stable window guidance throughout the entire range of motion,
• reduced load on mounting elements in the door,
• proper cooperation with comfort systems, such as window closing.

For the user, this means predictable system operation, no unwanted play, and a lower risk of repeated repairs in a short period.

Selection, Installation, and Additional Materials

Before installation, it is recommended to verify the part's compatibility with the vehicle based on the OEM number or catalog data to ensure full compatibility with the specific Range Rover L405 version. Installation should be performed by following the correct sequence of removing door trim, disconnecting the electrical system, and adjusting the window position after mounting the regulator.

If you are looking for other Ford window regulators and motors, check out our dedicated category: Ford window regulators and motors.

When selecting consumables and drive components, an expert guide on used drive components may also be helpful: Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which describes, among other things, the principles of verifying parts by OEM numbers and a practical approach to purchasing used components.