Air Filter Box BMW X3 E83 LCI Airbox Intake Silencer Housing 2.5si 3.0si 3448999

Visual condition of the part 

The product shows signs of use visible in the photos. 

Air Filter Box BMW X3 E83 LCI Airbox Intake Silencer Housing 2.5si 3.0si is an original intake system component designed for petrol engines in this model. It ensures stable mounting of the filter element and proper airflow to the engine, which promotes smooth operation. Thanks to its factory design, the housing maintains compliance with manufacturer requirements and facilitates vehicle maintenance.

Specifications and technical data

• SKU: 3448999
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3448999
• Substitutable numbers: 13713448999, 3448999, 3415441
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The presented housing belongs to the Air filter housings category and is dedicated to the BMW X3 E83 LCI (facelift) in 2.5si and 3.0si petrol versions. Its task is to tightly enclose the filter element and direct the airflow so that the cleanest and most evenly drawn air reaches the intake manifold. A properly selected housing reduces the risk of contaminants entering the engine and helps maintain stable operating parameters of the power unit.

Construction and fitment for BMW X3 E83 LCI

The housing construction was developed by BMW with the aim of precise fitment into the X3 E83 LCI engine bay. Properly shaped mounts and intake duct routings allow for secure seating of the component without stress or modifications. The applied design solutions support proper airflow, which is important for both performance and the refinement of the petrol engine.

Performance characteristics of the used component

The housing comes from an operated vehicle, which means it is a used part that retains the functionality intended by the manufacturer. This type of component is a good choice for post-accident repairs, replacing a damaged housing after cracking, or mechanical wear. Using an original used part allows for maintaining the integrity of the intake system without the need to use replacements with uncertain fitment.

Benefits of using an original air filter housing

Using a factory housing in a petrol BMW X3 E83 LCI helps maintain proper airflow parameters, which promotes stable engine operation and correct interaction with the control electronics. The properly designed geometry of the intake channels reduces turbulence and pressure drops, and proper sealing minimizes the risk of sucking in unfiltered air. For the user, this means more predictable vehicle behavior and easier service handling during every filter element replacement.

Part selection by numbers and additional materials

When selecting an air filter housing for a specific engine version, it is worth using the OEM part number and interchangeable numbers, which facilitates verifying compatibility with a given BMW X3 E83 LCI unit. In case of doubt, it is helpful to compare the shape and mounting points with the element currently installed in the vehicle. If you are interested in a broader context of using aftermarket components, practical tips on selection by numbers and compatibility can be found in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses, among other things, the principles of working with OEM markings.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional housings, intake ducts, or filter mounting elements, check the available parts in the BMW Air filter housings category.