Land Rover Discovery Sport L550 Door Lock Catch Latch Front Left N/S LR078738

Land Rover Discovery Sport L550 Door Lock Catch Latch Front Left N/S is an original component from the Locks and Latches category, designed for installation in the front left door area. It ensures precise cooperation with the factory opening and locking mechanism, maintaining the proper level of safety and comfort for your Land Rover vehicle.

Specifications and technical data

• SKU: RHD-LR078738
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR078738
• Substitutable numbers: LR078738, CPLA21813RG, CPLA-21813-RG
• Location on the vehicle: Front, Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock is dedicated for installation in the front left door of the Land Rover Discovery Sport L550. It is responsible for the mechanical locking of the door panel and works in conjunction with the handle system, linkages, and any central locking actuators, which translates into proper closing and opening of the driver or passenger side door, depending on the vehicle version. Thanks to a design compliant with the manufacturer's standards, the component maintains the correct geometry of mounts and attachment points, which facilitates installation in the factory door openings and minimizes the risk of leaks or improper mechanism operation.

Benefits of using an original lock

Using an original door lock in the Discovery Sport L550 allows you to maintain the integrity of the vehicle's security system. The component is designed to work with the factory locking system, ensuring that it:

• provides stable holding of the door panel in the closed position,
• reduces the risk of play and rattling while driving,
• maintains the proper operation of the exterior and interior handle,
• promotes the maintenance of acoustic sealing and protection against weather conditions. For the user, this means reliable door closing, predictable mechanism operation, and no need to adapt replacements with uncertain fitment.

Installation characteristics

The lock is intended for installation in the factory mounting location in the front left door. The design provides for cooperation with original guides, linkages, and mounts, which allows for workshop-standard servicing without the need to modify the door skin. When replacing, it is recommended to:

• check the condition of the handle, linkages, and seals within the door area,
• verify the correctness of the adjustment after installation,
• verify the operation of the mechanism by repeatedly opening and closing from the inside and outside. This approach allows you to fully utilize the potential of the part and ensure stable operation of the locking system in daily use.

Condition and service application

The offered lock comes from a Land Rover vehicle and is a used component, making it an attractive service solution for maintenance repairs or restoring functionality after mechanical door damage. It is a practical choice in situations where the existing lock has worn out, deformed, or stopped working with the handle system. Due to its factory origin, the part works well both in routine repairs and in work restoring full functionality to the door area after a collision or bodywork intervention.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the door area in your Land Rover and need other components from the same group, such as catches, locking mechanisms, or cylinders, check the available parts in the Land Rover Locks and Latches category. For drivers interested in deepening their knowledge of advanced powertrains and their service, an article describing the refurbishment of a Mercedes diesel unit may be helpful – more information can be found in the article Second life of the Mercedes OM642 engine – how injectors and turbocharger restore the power of the 3.0 V6 CDI, which shows how properly selected components affect the durability and refinement of the entire vehicle.