Description
The BMW E83 X3 Trunk Latch Bracket Mount is an original mounting component designed for the trunk system in the BMW X3 E83 model. This specialized bracket is responsible for the stable mounting and secure latching of selected tailgate or trunk trim components, which translates to safe mechanism operation and structural integrity of the rear body. Due to its factory origin, it is precisely fitted to the body geometry and mounting points of this specific model.
Specifications and technical data
- SKU: 3405821
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 51473405821
- Substitutable numbers: 51473405821, 3405821
- Category: Other Interior Parts & Accessories
Intended Use and Function of the Component
The presented trunk latch bracket mount has been designed for precise guidance and support of the components responsible for closing and positioning the trunk lid in the BMW X3 E83. Its tasks include:
- maintaining the correct position of mounting elements in the trunk area,
- providing a stable support point for the latch or bracket,
- reducing unwanted play and vibrations within the rear body section,
- ensuring consistent operation of the trunk closing mechanism.
This ensures the trunk maintains the correct closing geometry, and the lid operates predictably and comfortably for the user.
Benefits of Using an Original Bracket
Using the original trunk latch bracket mount in the BMW X3 E83 allows for the preservation of the trunk mechanism’s factory operating parameters. This component has been manufactured according to the vehicle manufacturer’s requirements, which translates to:
- precise fit to the mounting points in the body without the need for modifications,
- compatibility with other components of the trunk system,
- maintaining the rigidity and stability of the mounting as intended by the manufacturer,
- reducing the risk of accelerated wear on the hinges, lock, and lid seals.
Choosing an original solution is particularly important for post-accident repairs or after intensive use, when aiming to restore the vehicle’s original functionality and comfort.
Characteristics of a Used Component
The offered bracket is a used part from a dismantled vehicle, which in practice means a favorable combination of OEM quality with an attractive price. Such components are often chosen for:
- maintenance repairs after wear or damage to the factory mount,
- restoring the trunk mechanism’s functionality after a rear-end collision,
- completing missing structural elements after previous, incomplete repairs.
As a structural element, the trunk latch bracket mount is not exposed to as intensive wear as moving parts, therefore its reuse is often a rational and technically justified solution.
Professional Use in Service and Repairs
This type of component is frequently used in professional workshops specializing in BMW body repairs, particularly when restoring the factory geometry of the vehicle’s rear end. The trunk latch bracket mount:
- facilitates the correct alignment of the lid with the fenders and bumper,
- allows for precise fitting of the plastic and upholstery elements of the trunk trim,
- reduces the risk of cracking and squeaking noises during driving.
For the end-user, this translates to more comfortable trunk use and stable, predictable lid closing.
Related Components and Further Information
If you are planning a comprehensive repair or upgrade of the trunk area in your BMW and need other parts from the same group, such as additional brackets, mounts, or fixings, check the available parts in the Other BMW category.
When planning broader modernization work or comparing structural solutions across different makes and models, an article discussing the differences in the construction and characteristics of high-performance cars might be helpful – find more information in the article Audi RS vs. Other Models – What’s Under the Hood and Chassis?.





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