BMW E90 E91 LCI N47N 320d Intercooler Charge Air Line 8511739

The BMW E90 LCI N47N Intercooler Hose – Charge Air Hose is a turbocharger system component designed for the facelifted BMW 3 Series E90 models with the N47N engine. This hose from the Turbocharger and Parts category restores proper charge air flow and stable diesel engine operation.

Specifications and technical data

• SKU: 8511739
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8511739
• Substitutable numbers: 11618511739, 8511739
• Category: Turbos & Parts

Purpose and function in the supercharging system

This BMW E90 LCI N47N boost air hose operates between the turbocharger, intercooler, and intake manifold, ensuring tight and stable compressed air routing. A properly selected hose reduces boost pressure drops, supports the smooth operation of the N47N engine, and helps maintain proper combustion parameters.

Using an OEM-compliant cable ensures:

• correct geometrical fit to the standard BMW E90 LCI intake system,
• stable charge air flow under typical road loads,
• reducing the risk of leaks, power loss and the engine going into emergency mode.

Construction, fitting and assembly

The intercooler hose was designed as a dedicated turbocharger component for the specific configuration of the BMW 3 Series with the N47N engine. This means:

• its shape, diameters and mounting points are adapted to the factory routing in the E90 LCI engine compartment,
• the terminals and sockets used are compatible with standard clamps, connectors and nozzles,
• Installation is almost plug-and-play, without the need to modify the intake system.

The used element from the original BMW dismantling is a solution that allows you to maintain the factory airflow concept, without the compromises typical of universal replacements.

Used condition and operational aspects

The intercooler hose is offered in used condition, meaning it has been disassembled and previously operated in a vehicle. This type of part is an attractive cost alternative to a new component, while maintaining the original manufacturer's specifications. In practice, this allows for:

• reduce the cost of repairing the supercharging system in the BMW E90 LCI,
• maintain consistency with factory N47N engine components,
• comply with the OEM markings and replacement numbers assigned to this cable.

During installation, it is recommended to check the condition of the clamps, sockets and adjacent intake elements to fully utilize the potential for tightness and correct air flow.

Benefits of using the original intercooler hose

Choosing a genuine BMW turbocharger and parts air intake hose is the solution for users who expect predictable turbocharging performance and a perfect fit for the N47N engine. Key benefits include:

• factory flow geometry – consistent with BMW design for the E90 LCI,
• compatibility with OEM markings and reference numbers used in service catalogues,
• reducing the risk of problems with boost pressure, smoke or performance loss.

For workshops and private users, this means easier identification of parts, faster selection of replacements for future repairs and greater predictability of the operation of the intake system.

Part selection, OEM numbers and comparison with other solutions

When selecting an intercooler hose for a BMW E90 LCI N47N, it's crucial to rely on the OEM designation and associated interchange numbers. This allows you to verify compatibility with the specific engine version and year of the vehicle, and avoid installation issues resulting from differences between model variants.

If you're considering whether to choose an original part, a replacement, or a used part, this article describing the differences in cost, quality, and fit may be helpful. Explore the resources: original, replacement, and used parts – which solution is the most cost-effective? to make an informed decision about your BMW's service strategy.

If you're also looking for other turbochargers and parts for BMW, check out our dedicated offer: turbochargers and parts for BMW . This makes it easy to assemble the remaining components of your turbocharger system while maintaining brand and category consistency.