Vent Pipe BMW F10 M5 F12 F13 M6 S63N Cylinder Head Breather Line Hose 7843150

Vent Pipe BMW F10 M5 F12 F13 M6 S63N Cylinder Head Breather Line Hose is an original crankcase ventilation system component designed for the high-performance S63N engines in M5 F10 and M6 F12/F13 models. Thanks to its factory geometry and precise fit, it ensures proper oil vapor extraction and stable engine operation under heavy load. This is the ideal solution for users who expect consistency with the original BMW design and want to maintain the correct operating parameters of the powertrain.

Specifications and technical data

• SKU: 7843150
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7843150
• Substitutable numbers: 7843150, 11157843150
• Category: Hoses, Lines & Pipes

Purpose and technical function

The breather hose in the S63N engine is responsible for the controlled extraction of gases from the crankcase into the intake system, which reduces engine overpressure and helps maintain stable lubrication conditions. In M5 F10 and M6 F12/F13 units operating under high load, a properly functioning breather pipe is crucial for:

• maintaining proper crankcase pressure,
• reducing blow-by and unwanted oil leaks,
• stable operation of turbochargers and the intake system,
• maintaining smooth engine performance during dynamic driving.

Thanks to a design consistent with BMW specifications, the hose maintains the correct shape, diameter, and rigidity, which promotes consistent flow parameters and proper interaction with other ventilation system components.

Compatibility with the S63N unit

This breather pipe is dedicated to the S63N engine used in M5 F10 and M6 F12/F13 models, meaning it has been designed specifically for the layout of the cylinder heads, manifolds, and accessories of these units. In practice, this translates into:

• secure fit to factory mounting points,
• maintaining proper hose routing in the engine bay,
• no need for modifications or fitting universal parts.

For users servicing M-series cars, it is important that using an original hose from the Lines, Hoses and Pipes category allows for compliance with BMW service documentation and facilitates future diagnostics.

Component characteristics and condition

The offered breather hose is an original BMW part, sourced from dismantling. Using a component of this type often allows for an economical repair of the ventilation system while maintaining factory quality and material standards. Compared to universal replacements, the original breather pipe provides:

• a design-compliant hose path in the engine bay,
• appropriate flexibility and resistance to the operating temperatures of the S63N unit,
• consistency with other ventilation and intake system components.

This is a particularly beneficial solution for servicing cars driven dynamically, where predictable lubrication and ventilation system behavior is essential.

Benefits of using an original breather hose

Using an original breather pipe in an M5 F10 or M6 F12/F13 helps reduce the risk of problems typical of incorrectly selected hoses, such as leaks, kinks, or uncontrolled cross-section changes. A well-selected component of this type:

• promotes stable engine operation under high load,
• helps keep the intake system clean,
• facilitates future service work thanks to factory-standard routing.

If you are planning a comprehensive service of the S63N unit or an accessory upgrade, it is worth verifying the condition of other hoses in the engine bay at the same time. The Lines, Hoses and Pipes category will be helpful in selecting other elements, where you will find related auxiliary system components.

Technical support and knowledge about OEM parts

When working with original BMW parts, it is crucial to understand the differences between OEM components and replacements, as well as the impact of these differences on the durability and performance of the vehicle. In a broader context of selecting original and replacement parts, the article on our blog may be helpful: a comparison of classic and modern MINI design solutions and the role of OEM parts. It allows for a better understanding of why, in demanding models such as the M5 and M6, using components consistent with the manufacturer's design is particularly important.

Additionally, we encourage you to read other technical materials on our blog: practical tips on selecting and operating original BMW parts, which will help you consciously plan service and upgrades for M-series vehicles.