BMW X3 E83 LCI Right O/S Engine Compartment Protection Bracket 3404140

BMW X3 E83 LCI Right O/S Engine Compartment Protection Bracket is an original mounting component designed for the right side of the engine compartment in the BMW X3 E83 model. It provides stable, precise support for the engine cover, which translates into proper protection of the power unit and auxiliary components. This is a solution for users who expect factory-fit quality and secure mounting without the need for modifications.

Specifications and technical data

• SKU: 3404140
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3404140
• Substitutable numbers: 51713404140, 3404140, 64509184102, 9184102, 64509119701, 9119701, 64536982874, 6982874, 64536911946, 6911946
• Location on the vehicle: Right
• Category: Engine Mounts

Purpose and function of the bracket

The right engine cover mounting bracket is responsible for securely attaching the cover in the right-hand area of the vehicle, which is essential for both mechanical protection and proper airflow management for cooling. This component works in conjunction with other mounting points to create a cohesive system that protects the lower part of the engine from dirt, water, and minor operational damage.

Thanks to a design consistent with BMW factory solutions, the bracket maintains the correct mounting geometry, which reduces stress on the cover and minimizes the risk of cracks or looseness while driving.

Compatibility and replacement numbers

The element was designed as an original BMW part, which facilitates selection based on the OEM part number and available interchangeable numbers. The presence of multiple reference numbers allows for the safe use of the bracket as a replacement across various equipment variants of the BMW X3 E83, while maintaining dimensional and mounting compatibility.

For the user, this means the ability to use a single, proven component in place of several factory-applied versions, without the need to modify the engine cover or the mounting points on the bodywork.

Vehicle placement and mounting aspects

The bracket is intended for installation on the right side of the vehicle, in the engine compartment zone. Such clear placement identification makes it easier to identify the correct part during post-accident repairs or when replacing worn-out cover mounts.

With a correctly selected bracket, installation proceeds in a manner similar to the factory process – it utilizes existing mounting points, maintaining the original routing line of the cover. This helps reduce labor time and the risk of installation errors, as well as maintaining the correct geometry of the lower engine protection.

Benefits of using an original BMW bracket

Using a bracket consistent with BMW solutions ensures:

• consistency with the factory engine cover mounting system,
• proper load transfer from the cover to the body,
• reduced risk of vibration and noise originating from loose components,
• easier diagnostics and future service due to the preservation of the original configuration.

For BMW X3 E83 owners, this is a practical solution that allows for restoring the proper mounting of the engine cover after mechanical damage or operational wear, without compromising on fitment.

Connection to the cooling system and high-temperature operation

A properly mounted engine cover supports the maintenance of proper airflow in the engine compartment, which is significant for the operation of the cooling system, especially during the summer. Stable mounting limits uncontrolled openings or deformations of the cover that could affect the direction of the airflow.

If you want to better understand how thermal conditions affect the operation of the engine and auxiliary components, it is worth checking out our guide: Summer heat vs. cooling system – used radiators and fans as a way for economical operation.

Expanding work in the BMW engine mounting area

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional mounts, brackets, or power unit support elements, check out the available parts in the BMW Engine Mounts category.