BMW 1 3 Series E81 E87 E90 116i 1.6 Air Filter Box Intake Silencer Lower Part

The BMW E87 E90 Lower Air Filter Housing is an original intake system component from the BMW group, designed for installation in models of the 1 Series E87 and 3 Series E90. The robust construction of the housing ensures a stable fit for the air filter element and helps maintain proper airflow to the engine, contributing to its smooth operation and correct combustion characteristics.

Specifications and technical data

• SKU: 7557174
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7557174
• Substitutable numbers: 7557174, 13717557174, 13717543161, 7543161
• Category: Other Air & Fuel Delivery

Purpose and Function in the Intake System

The lower part of the air filter housing is responsible for safely guiding the intake air from the intake duct to the filter element, and then further towards the airflow meter and the intake manifold. For BMW E87 and E90 models, a correctly selected housing is crucial for:

• maintaining the airtightness of the intake system,
• stable mounting of the filter element,
• reducing air turbulence before the engine,
• limiting the intake of contaminants from outside the filter.

Thanks to its factory geometry, this component works with other intake components, which helps maintain the original performance parameters of the powertrain.

Construction and Fit for BMW E87 / E90

The housing has been specifically designed for the engine bay in the E87 and E90 platforms, taking into account the placement of mountings, cable routing, and covers. This means:

• compatible mounting points with factory brackets in the bodywork,
• designed for the standard air filter element from the air filters category,
• maintaining the original airflow path in the engine bay.

This precise fit facilitates installation and helps avoid problems with improper fit, which are common with universal aftermarket replacements.

Benefits of Using an Original Air Filter Housing

Using a lower part of the air filter housing from BMW OE translates into a number of practical operational benefits:

• Stable filter element mounting – the element does not shift during driving, which promotes uniform filtration.
• Reduced intake of unfiltered air – properly formed contact edges with the upper part of the housing help maintain airtightness.
• Better cooperation with the engine's original electronics – maintaining the factory airflow characteristics facilitates the correct operation of control systems.
• Seamless serviceability – filter element replacement is performed according to manufacturer-specified procedures.

Condition of the Component and Practical Application

The offered lower part of the air filter housing is a used part, allowing for economical repair of the intake system in BMW 1 Series E87 and 3 Series E90 models. This is a good solution in situations where the original housing has suffered mechanical damage, cracking, or deformation, which can cause leaks and improper airflow.

Replacing a damaged housing with an original component from the same model platform allows for the restoration of correct air filter operating conditions without altering the intake structure, which is particularly important for maintaining the vehicle's original specifications.

BMW Air Filters – Selecting the Right Components

If you are looking for other BMW air filters suitable for your model, use the dedicated category: BMW air filters. There you will find a wide selection of intake system components designed for various series and engine versions of this brand.

More About Using Used Parts in Tuning

The lower part of the air filter housing can also be used in modernization or light tuning projects, where it is important to maintain the original intake system base while using different filter elements. If you want to learn more about the conscious use of used components in car modifications, check out the article: Best Used Parts for Tuning Your Car.