Land Rover Discovery L550 Tailgate Boot Lock Latch Actuator FK72-442A66-AA

Land Rover Discovery L550 Tailgate Boot Lock Latch Actuator is a precision component from the Locks and Latches category, responsible for securely closing and unlocking the tailgate. This solution is designed for installation in the rear part of the vehicle body, ensuring reliable locking and stable operation of the trunk opening mechanism.

Specifications and technical data

• SKU: FK72-442A66-AA
• Mark: Land Rover
• Condition: Used
• OEM Part Number: FK72-442A66-AA
• Substitutable numbers: FK72-442A66-AA, FK72442A66AA
• Location on the vehicle: Rear
• Part type: Tailgate Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented tailgate boot lock latch actuator has been designed specifically for the Land Rover Discovery L550 model, with a focus on operation in the rear body zone. It is responsible for the mechanical locking of the tailgate, cooperation with the opening system, and maintaining proper pressure, which reduces unwanted vibrations and noise while driving.

Its placement in the rear of the vehicle means that this component operates under conditions exposed to variable temperatures, moisture, and contaminants, which is why the construction of the lock and actuator is prepared for long-term operation in typical road conditions.

Construction and technical characteristics

The tailgate boot lock integrated with the actuator forms a complete module responsible for the process of closing and unlocking the tailgate. The locking mechanism works with the actuator drive, which enables smooth operation of the opening system, both during manual operation and as part of the vehicle's comfort systems, if present in the given car configuration.

This type of solution provides:

• stable locking of the tailgate in the closed position,
• repeatable operation of the mechanism during repeated opening and closing,
• maintenance of the correct closing geometry in the rear part of the body.

Benefits of using an original tailgate lock

Using an original tailgate boot lock latch actuator in the Discovery L550 allows for maintaining the factory operating parameters of the tailgate. Proper fitment to the body structure reduces the risk of leaks, play, and closing problems that may occur with components of uncertain origin.

The main advantages include:

• compatibility with the factory mounting system in the rear of the vehicle,
• consistency with the original control installation and tailgate mechanics,
• maintaining predictable tailgate behavior in daily use.

Condition and service application

The item comes from the used parts group, which makes it an attractive service solution for users looking for a technically sound lock with an actuator on a budget. Replacing the tailgate boot lock is recommended in case of problems with closing, lack of mechanism response, or unstable holding of the tailgate in the closed position.

Before installation, it is worth verifying compatibility with the specific equipment version of the Discovery L550 and checking the condition of the mounts in the rear part of the body to ensure proper seating and operation of the entire system.

Expansion of the Land Rover locking system

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

For users interested in deepening their knowledge about selecting aftermarket parts, installation procedures, and compatibility verification, the practical Global Parts service guide may be helpful – BMW B58 code, i.e., 340 HP from the secondary market – a checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20), which shows how to approach the purchase and installation of advanced mechanical components step by step.