Mercedes C140 Boot Trunk Lid Tailgate Rear Lock Catch Actuator A1407502391

Mercedes C140 Boot Trunk Lid Tailgate Rear Lock Catch Actuator is an original component from the Locks and Latches group, designed for installation in the rear part of the vehicle body. It ensures secure closing of the trunk lid, stable retention of the tailgate, and proper operation with the factory locking mechanism in C140 series models.

Specifications and technical data

• SKU: A1407502391
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1407502391
• Substitutable numbers: A1407502391, A 140 750 23 91
• Location on the vehicle: Rear
• Category: Exterior Locks & Lock Hardware

Purpose and function of the tailgate lock

The presented lock is responsible for the mechanical latching of the trunk lid at the rear of the vehicle. The component works with the factory striker and opening mechanism, keeping the tailgate in a stable position while driving and when parked. A properly functioning lock reduces tailgate vibrations, minimizes noise, and contributes to the sealing of the rear body section.

Its placement in the rear area of the vehicle allows for the direct replacement of a damaged or worn lock without interfering with other body components. Thanks to the preservation of the original mounting geometry, the installation process is orderly and predictable.

Benefits of using an original Mercedes lock

Using a lock from the original Mercedes line allows for maintaining the structural integrity of the tailgate and proper cooperation with the factory opening mechanism. Proper fitment to the bodywork reduces the risk of improper closing, the need for forced adjustments, or excessive strain on the hinges.

Key advantages of this solution include:

• preservation of the factory operation of the latching mechanism,
• compatibility with original body parts and trunk upholstery,
• stable retention of the tailgate in the closed position,
• reduction of rattling and play in the rear part of the vehicle.

Characteristics of the used component

The offered lock comes from a used vehicle, which means it is a used part with its functional capacity preserved. This type of component is a good choice for post-accident repairs, replacement after mechanical damage, or restoring the efficiency of the latching system in older C140 series units.

Choosing a used lock allows for optimizing service costs while maintaining the manufacturer's original specifications. It is a practical solution for workshops and users who expect the mechanism to function correctly within a reasonable budget.

Installation in the rear of the vehicle

The lock is intended for installation in the rear area of the vehicle, in the trunk lid mounting zone. The design intended for the C140 body allows for installation in place of the factory component, while maintaining the original mounting points and tailgate guidance. Proper adjustment of the lock has a direct impact on the closing line, seal performance, and the convenience of using the trunk.

When replacing, it is recommended to check the condition of the hinges and the striker, as well as to adjust the position of the tailgate to fully utilize the capabilities of the offered lock and achieve even contact of the lid with the body.

Additional information and related products

If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other elements from the same group, such as latching mechanisms, strikers, or tailgate actuators, check the available parts in the Mercedes Locks and Latches category.

For more extensive body repairs, especially after a collision, it is worth checking out practical tips on selecting dismantled parts – you will find them in the article Bodywork and chassis – post-accident repairs using dismantled parts, which discusses procedures, application examples, and the most frequently asked questions related to such repairs.