BMW E81 E87 LCI Diesel N47 Charge Intake Air Line Pipe Hose Duct Turbo 7797481

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E81 E87 LCI Diesel N47 Charge Intake Air Line Pipe Hose Duct Turbo is an original boost system component designed for BMW 1 Series diesel engines after the facelift. This specialized hose ensures a stable connection between the intercooler and other intake components, which translates into correct boost pressure and smooth engine operation. Thanks to its factory geometry and diameter, it is precisely matched to the intake system in models with the N47 engine.

Specifications and technical data

• SKU: 7797481-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797481
• Substitutable numbers: 11617797481, 7797481
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the boost system

The intercooler hose in a diesel engine is responsible for transporting compressed air from the charge air cooler to the intake manifold or further sections of the system. In N47 units, proper airflow is crucial for:

• maintaining stable boost pressure across the entire RPM range,
• ensuring the correct amount of air for fuel mixture combustion,
• reducing power drops resulting from leaks or hose deformation,
• maintaining the correct operating parameters of the turbocharger and intercooler.

By maintaining the factory shape and cross-section, this item from the Lines, Hoses and Pipes category allows for restoring factory airflow conditions in the intake system.

Benefits of using an original BMW hose

Using a hose dedicated to a specific generation of the BMW 1 Series with an N47 engine brings measurable operational benefits:

• Factory geometric fit – the correct length, diameter, and profiling facilitate installation in the engine bay without tension or issues with mounting points.
• Diesel engine stability – reducing the risk of power drops, jerking, or the engine entering limp mode due to intake leaks.
• Seamless compatibility with accessories – the hose is designed for the specific layout of the intercooler, turbocharger, and manifold, which reduces the risk of rubbing against other components.
• The ability to restore factory boost parameters after repairs or modifications to the intake system.

Installation and operational characteristics

The intercooler hose in this BMW model is a component that operates under demanding conditions – high pressure, temperature, and vibrations generated by the diesel engine. A properly selected component allows you to:

• maintain connection tightness during dynamic driving and frequent load changes,
• minimize the risk of cracks, leaks, and boost pressure drops,
• limit unwanted hose deformation over the long term of use.

This element is particularly important during urban and highway driving, where the N47 engine often operates under increased load. Replacing a worn or damaged hose with the correct component allows you to restore the proper operating characteristics of the boost system without interfering with other sub-assemblies.

Part selection by numbers and online purchase support

For intake system components, such as the intercooler hose, it is crucial to match the part to the specific engine and body version. Both OEM part numbers and interchangeable numbers assigned to a given component are helpful in this regard. To minimize the risk of errors when buying online, it is worth using verification methods based on factory and catalog numbers. Practical tips on such verification can be found in the guide Risk-free online parts shopping – 5 proven ways to verify component compatibility, which discusses, among other things, selecting components for BMW based on OEM numbers.

Expanding the BMW intake system

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional intake lines, flexible intercooler hoses, or rigid pressure pipes, check out the available parts in the BMW Lines, Hoses and Pipes category.

Summary

BMW E81 E87 LCI Diesel N47 Charge Intake Air Line Pipe Hose Duct Turbo is a dedicated boost system component for the diesel engine that allows for maintaining proper airflow parameters and stable engine operation. Choosing a component designed specifically for this model reduces the risk of installation problems, leaks, and power drops, thus providing a sensible solution for repairs and maintenance of the intake system in a BMW 1 Series with an N47 engine.