BMW F40 Boot Trunk Lid Tailgate Gas Pressurized Spring Strut 7456042

BMW F40 Boot Trunk Lid Tailgate Gas Pressurized Spring Strut is an original component from the Boot lids and rear parts group, designed for precise operation with the trunk lid in BMW F40 series models. It ensures controlled opening and closing of the tailgate, stabilizing its movement and relieving the hinges. This is a practical solution for users who expect reliable operation of the trunk lifting mechanism.

Specifications and technical data

• SKU: 7456042-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7456042
• Substitutable numbers: 7456042, 51247456042
• Part type: Bootlid
• Category: Boot & Hatch Lids

Purpose and function of the strut

The telescopic tailgate strut in the BMW F40 is responsible for assisting the movement of the trunk lid throughout its entire range of operation. The properly selected characteristics of the gas spring allow for smooth lifting of the lid, limit sudden drops, and improve the daily comfort of using the vehicle. This component works with the hinges and tailgate mounts, stabilizing its position in the upper position. Thanks to this, access to the cargo space is convenient, and the risk of uncontrolled closing of the lid is reduced.

Construction and performance parameters

The strut has a telescopic design in which the piston rod moves in a sealed housing filled with a working medium. Such a solution ensures predictable operating characteristics throughout the entire stroke and resistance to typical operational loads occurring in the rear part of the body. Properly designed mounting ends allow for a secure connection to the trunk lid and the body, which translates into the stability of the entire system. The strut is matched to the geometry of the BMW F40, thanks to which it maintains the correct operating angle and does not require structural modifications.

Application in the BMW F40

In the BMW F40 model, the tailgate strut operates in a demanding environment – it is exposed to temperature changes, moisture, and cyclical mechanical loads. Using a dedicated component from this group allows for maintaining the factory characteristics of opening and closing the lid, which is important for both comfort and safety of use. Replacing a worn-out strut with the correct component restores proper support for the lid, limits hinge overloads, and reduces the risk of damage resulting from the sudden falling of the lid. This is especially important when using the cargo space frequently.

Condition and benefits of using a used part

The offered element comes from the used parts segment, which allows for an economical repair of the lid lifting system while maintaining compliance with BMW factory solutions. Choosing such a component is beneficial for users who want to maintain the original construction of the vehicle while optimizing service costs. A strut of this type will work well both for standard replacement of a worn-out element and for post-accident repairs of the rear part of the body, where it is necessary to restore the correct operation of the trunk lid.

Expansion of the BMW tailgate system

If you are planning a comprehensive repair or modernization of the rear zone in your BMW and need other elements from the same group, such as tailgate hinges, locks, or additional mounts, check the available parts in the BMW Boot lids and rear parts category.

Technical knowledge and part selection

When selecting body elements and accessories, including tailgate struts, it is worth relying on proven solutions and the experience of specialized dismantling facilities. A well-chosen component reduces the risk of improper trunk lid operation and additional loads on the body structure. For drivers interested in a broader context of using parts from professional dismantling, including steering system elements, an article describing the practical aspects of purchasing used components may be helpful: Steering play and leaks: is it worth buying a used steering rack from professional dismantling?