BMW F20 F21 F30 LCI M140i 340i Fuel Tank Vent Pipe Breather Hose 7643103

BMW F20 LCI M140i B58 Air Hose Pipe Tube is an original intake system component designed for the B58 gasoline engine used in the facelifted compact BMW 1 Series model. This used component from the Hoses, Pipes, and Tubes category allows for the restoration of proper airflow to the engine, maintaining factory geometry and fit. It's a practical solution for repairs after mechanical damage or intake modifications.

Specifications and technical data

• SKU: 7643103
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7643103
• Substitutable numbers: 13907643103, 7643103
• Fuel type: Petrol
• Tire profile: 65535
• Category: Hoses, Lines & Pipes

Intended Use and Function in the Intake System

The air hose, specifically designed for the BMW F20 LCI M140i with the B58 engine, is responsible for stably guiding the airflow between the intake system components. The appropriately selected diameter and shape of the pipe minimize pressure drops, contributing to the efficient operation of the turbocharged gasoline engine.

For engines powered by gasoline, maintaining the hose's seal and rigidity is particularly important to avoid interference with sensor readings and unwanted air turbulence. Using an original component from the same model platform minimizes the risk of fitment and installation issues.

Benefits of Using an Original Air Hose

Using an air hose dedicated to the specific BMW F20 LCI M140i B58 version ensures:

• factory-standard airflow routing in the engine bay, consistent with the manufacturer's design,
• compatibility with standard mounting points and clamps,
• reduced risk of leaks compared to universal parts,
• cohesion with other intake system components.

For users who wish to maintain their car in a configuration close to the factory original, this hose is a safe service choice, allowing for predictable engine behavior and proper interaction with the control electronics.

Technical Characteristics and Fitment

This element belongs to the Hoses, Pipes, and Tubes group, meaning it is designed to operate in variable thermal and mechanical conditions within the engine bay. The hose's construction accounts for typical loads resulting from the operation of a turbocharged gasoline engine, such as pressure changes, vibrations, and temperature fluctuations.

The product is used, which in practice means it comes from a dismantled vehicle and has been verified for continued operational suitability. For many users, this represents a reasonable compromise between cost and maintaining the original manufacturer's specifications.

Application in Service and Modifications

The air hose for the BMW F20 LCI M140i B58 is suitable for both standard replacement of a damaged part and for work related to intake system upgrades, where maintaining the correct airflow paths is crucial. Replacing the hose is a typical service operation, performable in a workshop setting without altering the vehicle's body structure.

If you are considering a broader range of work on the body or dismantled parts and want to better understand how used components can affect the car's appearance and durability, it's worth reading the guide: replacing body panels with used parts and the visual effect of the vehicle.

Expanding the Intake System in BMW

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 air hoses, vacuum hoses, or pipes leading air to the intercooler, check the available parts in the BMW Hoses, Pipes, and Tubes category.