BMW F20 F21 F30 F31 116d 318d N47N Diesel Turbocharger Housing Cover 8518205

BMW F20 F21 F30 F31 116d 318d N47N Diesel Turbocharger Housing 8518205 is an original part from the Turbochargers and Parts group, designed for BMW 1 and 3 Series diesel engines with the N47N engine. The used housing provides a solid base for professional turbocharger refurbishment or replacement of a damaged body while maintaining factory geometry and fit.

Specifications and technical data

• SKU: 8518205-8
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8518205
• Substitutable numbers: 11658518205, 8518205, 11658513123, 8513123, 116585131238513123, 116585182048518204, 184671, 11658513122, 8513122, ŁS
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and Compatibility with N47N Diesel Engine

The turbocharger housing is designed to work with the N47N Diesel engine, used in BMW F20, F21, F30, and F31 models in the 116d and 318d versions. By maintaining factory design parameters, it ensures proper exhaust gas flow, stable mounting of the turbo core, and correct positioning of the ports relative to the exhaust manifold and intake system.

This part is particularly useful in situations where only the housing has been mechanically damaged, and the remaining turbocharger components are suitable for further use or refurbishment. This allows for optimization of repair costs while maintaining the original manufacturer's specifications.

Technical Characteristics of the Turbocharger Housing

The housing belongs to the Turbochargers and Parts group, meaning it is a component responsible for maintaining proper exhaust gas flow and stable rotor and core seating. The body's construction is adapted to the high temperatures and loads characteristic of diesel engines, and the appropriately shaped exhaust channels support efficient engine boosting.

Original manufacturing ensures:

• correct positioning of mountings relative to the engine block and manifold,
• compatibility with factory seals and mounting elements,
• stable operating conditions for the turbocharger core,
• the possibility of use in the professional turbocharger refurbishment process.

Benefits of Using an Original BMW Housing

Using an original turbocharger housing in the N47N engine allows for the preservation of factory boost system operating parameters, which translates to stable torque characteristics and proper interaction with the engine control unit software. An original body minimizes the risk of fitment issues, leaks, or improper exhaust gas flow that can occur with imprecise aftermarket replacements.

A used OEM part is also an attractive cost-effective solution – especially for repairs where maintaining quality is crucial, while simultaneously reducing expenses compared to purchasing a complete new turbocharger.

Part Numbers and Catalog Identification

The housing has a dedicated OEM part number and associated interchangeable numbers, which facilitates its unambiguous identification in BMW catalogs and parts selection systems. This allows a mechanic or service advisor to quickly verify the part's compatibility with a specific engine version and vehicle year, as well as compare it with other references used within the same engine family.

In practice, this means greater certainty of fitment and a reduced risk of ordering errors, which is particularly important for boost system components where design differences between variants can be minor but technically crucial.

Application in Tuning and Upgrades

The turbocharger housing for the N47N engine can be used not only for standard repairs but also in upgrade projects where a refurbished or modified turbocharger is built on the basis of the original body. This allows for maintaining correct mounting and geometry relative to the engine, while also selecting other internal components according to the project's specifications.

If you are interested in a broader context of using salvaged parts for vehicle modifications, it is worth reading the article describing a practical approach to tuning using OEM components – you can find it here: Emotions and Design – Visual and Mechanical Tuning of a Seat Using Salvaged Components.

Repair Extension – BMW Turbochargers and Parts

If you are planning a comprehensive engine area repair or upgrade for your BMW and need other parts from the same group, such as housings, cores, or turbocharger mounting elements, check the available parts in the BMW Turbochargers and Parts category.