Range Rover L405 Rear Door Lock Actuator Double Locking Left N/S LR053703

Range Rover L405 Rear Door Lock Actuator Double Locking Left N/S is a precision component from the Locks and latches group, responsible for the secure locking of the rear left body zone. The applied double locking mechanism enhances vehicle protection, ensuring reliable door closure and stable cooperation with the factory central locking electronics.

Specifications and technical data

• SKU: LR053703
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR053703
• Substitutable numbers: LR053703, LR078748, LR025540, CPLA26413AE, CPLA-26413-AE, CPLA26413AG, CPLA-26413-AG, BJ32224N02AB, BJ32-224N02-AB
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the actuator

The actuator is designed for installation in the rear left part of the body, where it is responsible for the mechanical and electrical control of the door latch. The double locking design enables effective vehicle security both during standard locking and when the additional deadlocking function is activated, which limits the possibility of unauthorized opening from the inside.

The component works with the factory central locking system, comfort module, and the vehicle's electrical installation, transmitting opening and closing signals and executing commands from the remote control or internal buttons. This ensures full integration with the safety and comfort systems in the Range Rover.

Construction and performance parameters

The lock actuator uses an integrated electric drive connected to a locking mechanism, which allows for fast and repeatable operation under typical operating conditions. The housing is designed for door operation – in an environment exposed to temperature changes and humidity – while maintaining appropriate rigidity and resistance to mechanical loads resulting from frequent opening and closing.

The double locking solution provides:

• more secure door locking during central locking,
• consistency of operation with factory security functions,
• stable performance over a long service life when installed correctly.

Vehicle integration and installation

The actuator is dedicated for use in Range Rover vehicles, which translates into proper fitment to the door structure and compatibility with original electrical harnesses. The placement in the rear left part of the body allows for direct replacement of a worn component without the need for installation modifications or interference with the door structure.

During installation, it is crucial to correctly align the mechanism relative to the mechanical lock and properly connect the electrical connectors. Maintaining the factory disassembly sequence of the upholstery and cable routing minimizes the risk of subsequent looseness, rattling, or improper door closing.

Condition and benefits of use

The offered actuator comes from the used components segment, which allows for an economical replacement while maintaining the manufacturer's original specifications. For the user, this means the ability to restore the proper operation of the central locking in the rear left part of the vehicle without the need to invest in a new element.

Using this actuator allows you to:

• restore full functionality of door locking and unlocking,
• maintain the consistency of the comfort and alarm system operation,
• reduce the risk of problems with improper closing or lack of response to remote control commands.

Complementary items from the Locks and latches group

If you are planning a comprehensive repair or modernization of the door zone and the rear part of the body in your Range Rover and need other elements from the same group, such as locking mechanisms, lock cylinders, or additional actuators, check the available parts in the Range Rover Locks and latches category.

More about vehicle preparation and selecting used parts

When planning service work, it is worth considering the general condition of the systems responsible for safety and comfort. Practical tips regarding the verification of used components, checklists, and working with OEM markings can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?, which helps to better plan maintenance and operational replacements.