BMW 1 3 Series F20 F21 F30 F31 LCI Air Duct Alternator Air Channel 7604340

The BMW F20 F21 F30 F31 Air Intake Pipe Duct is an original intake system component designed for compact and mid-size BMW 1 Series and 3 Series models. It ensures a stable air supply to the engine compartment, promoting smooth engine operation and maintaining factory performance parameters. Thanks to its construction compliant with the BMW OE standard, the intake duct preserves the correct flow geometry and fits factory mounting points.

Specifications and technical data

• SKU: 7604340
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7604340
• Substitutable numbers: 12317604340, 7604340
• Category: Other Air Conditioning & Heating

Intake Duct Purpose and Function

The BMW F20 F21 F30 F31 Air Intake Pipe Duct is responsible for directing air from outside the vehicle to other components of the intake system. A correctly selected duct:

• stabilizes airflow at various driving speeds,
• reduces turbulence, contributing to efficient cylinder filling,
• maintains the factory air routing within the engine compartment,
• ensures compatibility with body panels, grilles, and other body elements.

Using a component that matches the factory specification helps maintain predictable engine behavior and proper operating conditions for intake system sensors.

Original BMW OE Origin

The presented air intake pipe comes from the BMW OE line, which signifies adherence to factory design and material standards. Original manufacturing translates to:

• precise fitment to mounting points in BMW F20, F21, F30, and F31 models,
• compatibility with engine covers and factory intake system components,
• maintenance of the manufacturer-specified rigidity and temperature resistance.

This ensures a predictable installation process, without the need for modifications or additional adapters.

Item Condition and Installation Aspects

The product is offered as a used part, allowing for an economical replacement of a damaged duct while maintaining original specifications. Before installation, a standard visual inspection for leaks and the condition of mounting sockets is recommended.

The air intake pipe is structurally designed for installation in place of the original component, facilitating service work. In practice, this means it can utilize standard mounting points and cooperate with factory clamps and brackets in the engine compartment.

Benefits of Using an Original Air Pipe

Using an original intake duct in BMW F20, F21, F30, and F31 series models offers a range of practical benefits:

• Stable Engine Performance Parameters – maintaining the manufacturer-specified airflow.
• Consistency with Factory Construction – no interference with the intake system or bodywork.
• Easier Diagnostics – the system remains consistent with BMW service documentation.
• Economical Repair – a used OEM part helps reduce replacement costs while maintaining quality of execution.

Other Components and Technical Materials

If during the service of your BMW's intake system, you need to replace additional body components or mounting hardware and wish to stick to factory-specification solutions, check the available parts in the Other BMW category.

To compare design solutions used in sports versions of other brands and to better understand the impact of the intake, braking, and chassis systems on a car's character, it is worth reading the article describing the differences between series and sports versions: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.