BMW E90 E91 E92 N52 N52N Air Filter Box Intake Silencer Petrol 7552437

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E90 E91 E92 N52 N52N Air Filter Box Intake Silencer is an original intake system component designed for BMW 3 Series E9x generation petrol engines. It ensures stable airflow to the intake manifold, reduces intake noise, and maintains the factory operating parameters of the power unit. Thanks to its OEM design, this used part allows for a technically correct repair or replacement of a worn-out housing without interfering with the intake system design.

Specifications and technical data

• SKU: 7552437-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552437
• Substitutable numbers: 13717552437, 7552437
• Fuel type: Petrol
• Category: Intake Manifolds

Purpose and function in the intake system

The presented BMW E90 E91 E92 N52 N52N Air Filter Box Intake Silencer is designed to work with N52 and N52N petrol engines in BMW E90, E91, and E92 models. The component belongs to the Intake Manifolds group, responsible for the proper preparation of air before it is delivered to the manifold and other fuel supply system components.

This solution combines the functions of airflow guidance, filtration (once a suitable filter element is installed), and pulsation and intake noise suppression in one housing, which translates into acoustic comfort and stable operating conditions for the petrol engine.

Benefits of using an original intake housing

Using a factory BMW E90 E91 E92 N52 N52N Air Filter Box Intake Silencer in a BMW N52/N52N petrol engine allows you to maintain:

• correct intake duct geometry, which promotes even cylinder filling,
• a properly selected damping chamber volume, reducing resonances within the operating RPM range,
• consistency with factory mounts, hoses, and intake system sensors,
• compatibility with standard air filter elements designed for this engine generation.

As a result, you maintain the power unit's operating characteristics in accordance with the manufacturer's specifications, without the risk of unwanted changes to the mixture, refinement, or noise levels.

Condition, origin, and fitment

The component comes from the BMW range and is a used part, which allows for an economical yet technically correct repair of the intake system. Its original origin ensures proper fitment to factory mounting points in the engine bay and compatibility with other intake system components.

To ensure correct selection, it is worth verifying compatibility with your specific petrol engine and 3 Series E90/E91/E92 body generation to maintain full functionality of the intake system and avoid installation modifications.

Application in service practice

The BMW E90 E91 E92 N52 N52N Air Filter Box Intake Silencer is suitable both for standard replacement of a damaged part and for restoring the factory configuration after previous intake modifications. This is particularly important for petrol engines, where stable air intake conditions have a direct impact on the control system operation and exhaust emissions.

By choosing an original element from the Intake Manifolds group, you minimize the risk of leaks, incorrect airflow, or assembly problems that often occur with aftermarket replacements of different geometry.

Expanding the BMW intake system

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 intake sections, resonance chambers, or transition elements between the filter and the throttle body, check out the available parts in the BMW Intake Manifolds category.

More about exhaust and airflow modifications

If you are interested in the broader context of how airflow and exhaust flow affect the performance and refinement of power units in brands such as BMW, Mercedes, Audi, VW, or Mini, it is worth consulting specialist materials. Practical tips on selecting used components can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which helps to better understand the relationship between the intake and exhaust systems in cars with petrol engines and beyond.