Land Rover DISCOVERY L550 Front Right O/S Door Lock Mechanism GK72-203A28-CD

The Right Front Door Lock for Land Rover Discovery L550 is an original locking mechanism designed for installation on the driver's or passenger's side in right-hand drive versions. This component, from the Internal Locks and Latches group, is responsible for secure locking, unlocking, and integration with the vehicle's central locking and security system. Thanks to its factory OEM construction, the mechanism ensures proper door operation and compatibility with the body's electrical system.

Specifications and technical data

• SKU: RHD-GK72-203A28-CD
• Mark: Land Rover
• Condition: Used
• OEM Part Number: GK72-203A28-CD
• Substitutable numbers: LR070991, FK72224A80AA, FK72-224A80-AA, LR070444, GX63220B38BB, GX63-220B38-BB, GK72-203A28-CD, GK72203A28CD
• Location on the vehicle: Front, Right
• Category: Interior Locks & Lock Hardware

Purpose and Function in the Vehicle

The presented lock mechanism is dedicated to the right front door of the Land Rover Discovery L550 model, guaranteeing a precise fit with the door structure and guides. Its placement in the front-right area allows for correct interaction with the exterior handle, interior handle, and control rods. The lock is responsible for the mechanical latching of the door leaf and transmitting signals to the central locking system and comfort systems.

Construction and Technical Compatibility

The right front door lock mechanism in the Discovery L550 is based on the original Land Rover design, meaning it retains the original geometry of mountings, screw points, and connector sockets. This ensures the part fits factory mounting holes in the door panel, and connection to the electrical harness requires no modifications to the existing installation. Using an original solution minimizes the risk of play, leaks, and door closing issues.

The mechanism works with the factory central locking system, remote control operation, and comfort functions intended for the Land Rover Discovery L550. The appropriate configuration of internal latches and levers ensures correct response to signals from the body module, as well as proper operation of the lock from the inside and outside.

Practical Application and Benefits of Replacement

Replacing the right front door lock is recommended in cases of locking problems, no response to the central lock, difficulties opening the door, or improper interaction with the handles. Using an original mechanism allows you to:

• restore full functionality of door opening and closing,
• ensure correct operation of the central lock and comfort systems,
• maintain the factory level of cabin access security,
• avoid fitting issues characteristic of universal aftermarket parts.

For Land Rover Discovery L550 owners, this means stable operation of the locking system and reduced risk of failures resulting from improper component fit.

Characteristics of a Used Part

The offered mechanism is a used part, which allows for an economical repair while maintaining the original Land Rover construction. This type of component is particularly attractive for post-accident or operational repairs where a combination of reasonable cost and adherence to factory specifications is a priority. The lock, as a mechanical-electrical component, can continue to operate in the vehicle for a long time after proper installation, provided the doors are correctly adjusted and there are no damages in the mounting area.

If you want to better plan body repairs after a collision and select suitable parts from dismantling, it is worth reading the guide: Body and Chassis – Post-Accident Repairs Using Dismantled Parts.

Integration with Other Door Components

The lock mechanism works with other components of the right front door, such as handles, rods, guides, and seals. Proper installation requires maintaining the order of upholstery removal, disconnecting wiring harnesses, and correctly setting the rods so that the handle movement translates into full opening and closing. Thanks to its factory design, installation is predictable for workshops specializing in the Land Rover brand, which reduces repair time and the risk of re-disassembly.

If you are planning a comprehensive repair or upgrade of the door locking area in your Land Rover and need other parts from the same group, such as latching mechanisms, lock cylinders, or interior latches, check the available parts in the Land Rover Internal Locks and Latches category.