BMW 3 Series E90 E91 LCI 320d N47N Turbo to Intercooler Pipe Charge Air Line

The BMW E90 E91 LCI N47N Intercooler Hose Pipe is an original turbocharger and parts component designed for the supercharging system in BMW vehicles with the facelifted N47N engine. This used OEM part ensures a factory fit, stable airflow to the intercooler, and maintains stock turbocharging performance.

Specifications and technical data

• SKU: 8511738
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8511738
• Substitutable numbers: 11618511738, 8511738
• Category: Turbos & Parts

Purpose and function in the supercharging system

The BMW E90 E91 LCI N47N intercooler pipe is responsible for the tightest and most loss-free routing of compressed air between the turbocharger and the intercooler. A properly selected pipe reduces pressure drops, stabilizes flow, and helps maintain the proper air temperature, which translates into improved engine performance, agility, and fuel economy.

The original hose design is adapted to the geometry of the engine compartment in post-facelift (LCI) models, which minimizes the risk of friction against other components, material stress and leaks in the intake system.

Advantages of using the original intercooler pipe

Choosing an original hose from the turbocharger and parts category for BMW brings a number of practical benefits:

• Factory fit – maintaining the stock intake system geometry and compatibility with mounts and clamps.
• Stable operating parameters – reducing the risk of power drops resulting from leaks or cable deformation.
• Hassle-free installation – no need for modifications, adjustments or additional adapters.
• Compatibility with turbocharger system – hose designed to work with the factory intercooler and turbocharger in the N47N engine.

Condition of the used part and technical aspects

The intercooler hose offered is in used condition, meaning it has been disassembled and previously operated in a vehicle. These types of components are a popular choice as a cost-effective alternative to new parts, while maintaining the original manufacturer's specifications. Used intercooler hose is a sensible choice wherever factory fit and controlled service costs are key.

Before installation, a standard inspection of the tightness, condition of the connections, and the surfaces mating with the clamps is recommended. A properly installed pipe helps maintain stable boost pressure, which directly impacts the turbocharger's durability and driving comfort.

OEM selection and compatibility

The intercooler hose is one of the components selected primarily based on its OEM number and interchangeability. This allows for precise verification of compatibility with the specific N47N engine version and the E90/E91 facelift body. In practice, this means:

• easier identification of parts in service catalogs,
• certainty of fit to the existing intake system,
• reducing the risk of purchasing the wrong item.

If in doubt, it is worth using the OEM number and information from the vehicle documentation or manufacturer's catalog when selecting the part to ensure full compliance with the factory configuration.

Used components for premium brands – when is it a good choice?

For brands like BMW and Volkswagen, using used intake and supercharger components is often economically viable, provided the part comes from a reliable source and maintains its geometry and seal. If you're interested in a broader context for the use of used components in mainstream and premium cars, it's worth reading the article: Volkswagen – Reliability and Durability. Why Are Used VW Parts a Sensible Choice? It provides a better understanding of when used components are a rational service solution.

Other BMW intercooler pipes and hoses

If you're looking for other BMW intercooler hoses for various BMW models, check out our dedicated category: BMW intercooler hoses . This allows you to easily compare available options, select the right component for your engine, and optimize your entire turbocharging system for durability and performance.