Mini F55 F56 Rear Boot Trunk Lid Bump Stop Buffer 7340381

Mini F55 F56 Rear Boot Trunk Lid Bump Stop Buffer is an original rear lid mechanism component, responsible for controlled opening and secure positioning of the tailgate. Thanks to its precise design in accordance with Mini standards, the buffer stabilizes the movement of the lid and reduces the load on the hinges and other components of the rear bodywork. This is a practical solution for users who want to maintain the functionality of the trunk at the factory level.

Specifications and technical data

• SKU: 7340381
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7340381
• Substitutable numbers: 7340381, 51247340381
• Location on the vehicle: Rear
• Category: Lift Supports, Latches, Hinges & Additional Parts

Purpose and function in the vehicle

The buffer operates in the rear zone of the body, working with the hinges and mounting elements of the trunk lid. Its task is to:

• control the range of the lid opening,
• dampen movement during opening and closing,
• relieve the load on mounts and seals,
• maintain repeatable closing geometry.

Such a solution improves the comfort of using the trunk and reduces the risk of overloading the rear body structure.

Construction and technical characteristics

The element belongs to the Gas springs, locks, hinges and other parts group, which means it is designed to work with the support system and moving components of the lid. The buffer construction is optimized for:

• stable operation within typical operating temperature ranges,
• repeatable performance during repeated opening and closing,
• proper guidance of the lid in the final closing phase.

Thanks to its factory origin, compatibility with the Mini F55/F56 body geometry is maintained, which translates into proper fitment with other rear lid components.

Benefits of using an original buffer

Using an original buffer in the rear part of a Mini vehicle allows for maintaining predictable trunk lid behavior. Key advantages include:

• maintaining factory lid operating characteristics – without excessive play or uncontrolled dropping,
• better protection of hinges and mounts against overloads,
• consistency with other opening and closing system components,
• easier diagnostics of potential faults in the rear body zone.

This solution is particularly beneficial when replacing worn or damaged components, when the goal is to maintain the original functionality of the trunk.

Condition of the element and service application

The buffer comes from dismantling and is offered as a used part, which allows for an economical repair of the tailgate while maintaining the manufacturer's original specification. This type of component is often chosen in situations where:

• the trunk lid opens too abruptly or does not maintain a stable position,
• disturbing noises appear during the mechanism's operation,
• it is necessary to replace a single element without interfering with the entire lid structure.

Choosing an original buffer facilitates subsequent service and reduces the risk of compatibility issues.

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mini and need other elements from the same group, such as support springs, lid locks, or hinges, check the available parts in the Mini gas springs, locks, hinges and other parts category.

Technical support and knowledge about OEM parts

When selecting original and replacement parts for premium segment vehicles, it is worth knowing the differences in the design and purpose of individual components. A detailed discussion of manufacturers' approaches to designing body, suspension, and drivetrain components can be found in the article BMW M Performance: how do BMW M components differ from standard ones?, which helps to better understand the logic of using OEM parts in modern cars.