BMW 3 E90 E91 E92 N52N N53 Air Intake Silencer Muffler Filter Box Petrol 7555287

BMW 3 E90 E91 E92 N52N N53 Air Intake Silencer Muffler Filter Box for N52N and N53 petrol engines is a factory intake system component, specifically designed for this 3 Series generation. Thanks to its precise fitment within the engine bay and optimized airflow, it ensures stable engine operation and proper noise suppression of the intake air. It is a practical solution for users who want to maintain the original engine performance characteristics and compliance with BMW factory standards.

Specifications and technical data

• SKU: 7555287-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555287
• Substitutable numbers: 13717555287, 7555287, BG
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The presented air filter housing belongs to the Air filter housings category and is intended for BMW 3 Series E90, E91, and E92 models with N52N and N53 petrol engines. The component serves simultaneously as a filter chamber, an air intake silencer, and an air supply box for the throttle body.

This combination of functions allows for:

• maintaining proper airflow to the petrol engine,
• reducing intake noise, which improves acoustic comfort in the cabin,
• stable mounting of the air filter element in the position intended by the manufacturer,
• preserving the stock performance characteristics of the N52N/N53 engine.

Construction and fitment for the BMW 3 Series

The housing was designed as an OEM component for the E90/E91/E92 platform, meaning its geometry, mounting points, and shape of the intake ducts are adapted to the factory layout of components in the engine bay. This allows for secure seating in the original brackets and proper air routing from the front panel intake to the intake manifold.

In practice, this means that after correct installation:

• there is no need to modify adjacent components in the engine bay,
• compatibility with stock intake hoses and mounts is maintained,
• the intake system remains airtight, which promotes stable fuel-air mixture parameters.

Benefits of using an original filter housing

Using an original air filter housing in a petrol engine provides measurable operational benefits. The design intended for N52N and N53 units has been optimized for flow, which helps maintain proper vacuum values and limits the risk of interference with the mass air flow sensor or other sensors in the intake system.

The most important advantages include:

• Factory fitment for the BMW 3 Series – no issues with installation and alignment.
• Stable petrol engine operating conditions – predictable airflow consistent with ECU maps.
• Reduction of unwanted intake sounds thanks to the intake silencer function.
• The ability to maintain the car's stock character, which is important for maintenance and potential resale.

Condition, service application, and installation

The component comes from a used vehicle and is offered as a pre-owned part, which is a sensible choice for intake system repairs in older BMW 3 Series models. Replacing a damaged or leaking air filter housing with an original component allows for restoring proper air routing without the need to invest in expensive tuning solutions.

The housing is designed for use with petrol engines, making it particularly suitable for cars where maintaining the quality of air intake to the engine and the correct operation of the mixture control system is crucial.

Expanding the BMW intake system – related components

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 housings, intake ducts, or air supply hoses, check out the available parts in the BMW Air filter housings category.

For users interested in a broader look at the differences between standard components and sports-oriented parts, an article describing the characteristics of M and M Performance elements may be useful – more information can be found in the material BMW M Performance: how do BMW M components differ from standard ones?.