BMW F20 F30 Air Filter Box Intake Silencer N47N Diesel 8511655

BMW F20 F30 Air Filter Box Intake Silencer is an original intake system component designed for BMW diesel engines from the N47N family. It ensures stable mounting of the filter element, proper airflow to the engine, and maintenance of the factory performance parameters of the power unit. As such, it provides a solid foundation for service replacement of the housing in diesel-powered vehicles.

Specifications and technical data

• SKU: 8511655
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8511655
• Substitutable numbers: 13718511655, 8511655
• Fuel type: Diesel
• Category: Intake Manifolds

Purpose and function in the intake system

The air filter housing in BMW F20 and F30 models with the N47N engine is responsible for sealed intake airflow from the inlet to the intake manifold. A properly selected component allows for maintaining correct flow, reducing turbulence, and protecting the diesel engine from solid contaminants, which translates into the refinement and durability of the power unit.

A properly selected housing is particularly important in modern diesel engines, where precise air metering affects combustion parameters, exhaust emissions, and interaction with auxiliary equipment such as the turbocharger or the exhaust gas recirculation system.

Design and fitment for BMW F20 / F30

The presented housing has been designed specifically for the engine bay architecture of the BMW 1 Series F20 and 3 Series F30 with the N47N unit. This means:

• factory mounting points matched to the original brackets in the bodywork,
• geometry ensuring a correct connection with the intake manifold,
• space provided for an air filter element compliant with factory specifications.

As a result, installation is straightforward, without the need for modifications or the use of additional adapters, and the entire intake system maintains parameters close to factory standards.

Characteristics of the used component

The housing comes from the Intake Manifolds category, which emphasizes its close relationship with the intake system and airflow to the engine. As a used part, it is a good choice for users who want to restore system efficiency while maintaining reasonable service costs, while benefiting from the original geometry and fitment intended by the manufacturer.

In the case of used components, it is particularly important that the housing retains its load-bearing function and airtightness, which allows for continued operation in a diesel engine without a negative impact on the power unit's performance, provided that the other components of the intake system are in good technical condition.

Selection, compatibility, and technical support

When selecting an air filter housing for a BMW with an N47N engine, it is crucial to pay attention to compatibility with the specific body version and fuel type. This model is intended for use with diesel units, which is why it is suitable for users looking for a component matched to a diesel engine in the F20 or F30 series.

To better understand the impact of intake and exhaust components on the power unit's operating characteristics and to learn practical tips regarding used components, it is worth reading the article on our blog: Performance exhaust system: used manifolds and sports catalytic converters on the road. You will find a broader context regarding the operation of exhaust and airflow systems in modern cars.

If you want to further minimize the risk of error when choosing a used intake system component and other parts for your car, the following guide will be helpful: how to professionally select used car parts while maintaining OEM compliance. These are practical tips that facilitate compatibility verification and informed purchasing.

Expanding the intake system in BMW – Intake Manifolds

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 elements, hoses, or housings working with the intake system, check the available parts in the BMW Intake Manifolds category.

Summary

BMW F20 F30 Air Filter Box Intake Silencer is a practical service solution for diesel engine users who want to restore the proper operation of the intake system while maintaining factory fitment. The original design, intended use for specific BMW models, and association with the Intake Manifolds category make it a reasonable choice for repairs and upgrades within the engine bay.