BMW X3 Series E83 Boot Trunk Lid Tailgate Gas Pressurized Spring 3400379

BMW X3 Series E83 Boot Trunk Lid Tailgate Gas Pressurized Spring is an original component from the Boot lids and rear parts group, designed to support and ensure stable opening of the tailgate in the BMW X3 E83 model. The used gas spring ensures factory-fit, predictable mechanism operation, and maintains the correct opening geometry, which translates into convenience in everyday use.

Specifications and technical data

• SKU: 3400379
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400379
• Substitutable numbers: 51243400379, 3400379
• Category: Boot & Hatch Lids

Purpose and function of the BMW X3 E83 tailgate gas spring

The tailgate gas spring is responsible for the controlled lifting and holding of the trunk lid in a safe position. In the BMW X3 E83 model, this component operates under demanding conditions – exposed to temperature changes, dynamic loads, and frequent opening and closing cycles. Using an original component from the BMW group allows for maintaining the correct force characteristics, ensuring the tailgate does not fall unexpectedly and does not require excessive effort when lifting.

Construction and technical characteristics

The presented gas spring utilizes gas-assisted movement for the tailgate, ensuring smooth operation throughout its full range of motion. The design is based on precisely calibrated operating pressure and a sealed piston rod guide, which limits the risk of leaks and performance drops during operation. The mounts are adapted to the factory mounting points on the body and the tailgate of the BMW X3 E83, allowing for installation without modifications or additional adapters.

The used component from this group retains its original geometry and working length, which is crucial for the correct opening angle of the tailgate and user safety. As a result, after replacing the gas spring, the mechanism operates predictably, and the loads transferred to the hinges and the tailgate panel remain in accordance with the manufacturer's specifications.

Benefits of using an original BMW gas spring

Using an original tailgate gas spring in a BMW X3 E83 offers a number of practical benefits:

• factory fit to the body and tailgate without the need for mounting modifications,
• consistent operation with other components of the tailgate opening system,
• maintenance of the correct opening range and speed,
• increased comfort of using the trunk in daily operation.

For the user, this means stable tailgate operation, reduced risk of sudden falling, and maintained ergonomics when loading luggage. Choosing an original component from the Boot lids and rear parts group is particularly important for vehicles used intensively or in varied weather conditions.

Condition, fitment, and practical application

The offered item is in used condition, which allows for an economical replacement of a worn-out gas spring while maintaining parameters close to factory specifications. Thanks to the original design, installation is predictable – after removing the old gas spring, the new component can be seated in the same mounting points, without interfering with the body or the tailgate.

Before purchasing, it is worth verifying the compatibility of the part with your specific BMW X3 E83, using data such as manufacturer markings, reference numbers, and information contained in the technical specification. This helps avoid compatibility issues and ensures the proper operation of the entire tailgate mechanism.

Expanding support for the tailgate area in BMW

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

Technical knowledge and upgrades

When planning broader service work or upgrades, it is worth using reliable sources of technical knowledge that show how design solutions have changed across different car models and generations. A good point of reference can be an analysis of the evolution of popular models, where topics such as the selection of used parts, the scope of cost-effective repairs, and the impact of individual components on vehicle operation are discussed – you can find more on this in the article Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.