BMW E81 E87 LCI 123d N47S Housing Cover Turbocharger Turbo Part Hot Side 7804638

BMW E81 E87 123d N47S Turbo Cover Part 7804638 is an original turbocharger and parts component designed for the N47S turbocharger system. This used cover is a functional service solution for users who want to maintain the factory turbocharger performance characteristics of their BMW 1 Series.

Specifications and technical data

• SKU: 7804638-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7804638
• Substitutable numbers: 11657804638, 7804638, KZ
• Category: Turbos & Parts

Technical characteristics of the BMW turbo parts cover

This cover is an original BMW component, designed specifically to work with the turbocharger used in the N47S engine in the E81 and E87 123d models. The cover's design matches the geometry of the factory supercharger, ensuring proper exhaust and airflow and stable turbine operation.

The original design ensures proper fit with other turbocharger components, reducing the risk of leaks, unwanted vibrations, and assembly issues. This allows the component to be used both for repairs and as part of a factory-specified used turbo kit.

Application in the N47S supercharger system

The turbo cover in the N47S engine plays an important role in the turbocharger housing, affecting:

• stable exhaust gas routing within the hot turbo area,
• maintaining tightness between turbocharger sections,
• correct positioning of internal elements relative to the body,
• appropriate structural rigidity of the entire turbo assembly.

By adapting to the specific engine and body variant, the cover allows the factory operating parameters of the supercharging system to be maintained, which is important for both the performance and durability of the drive unit.

Original origin and used condition

This part comes from the BMW OE line of parts, meaning it was manufactured to the vehicle manufacturer's specifications. Compared to aftermarket parts, the original cover provides:

• factory fit for the turbocharger used in the BMW E81 and E87 123d,
• material consistency with other elements of the system,
• maintaining the designed geometry of exhaust gas and air flow.

The part is in used condition, which in practice means that it may show signs of wear typical of components operating in the engine compartment, but remains fully functional for further use after proper installation.

Benefits of using the original turbo cover

Choosing an original, used turbocharger cover for your BMW 1 Series with the N47S engine is both a technically and economically advantageous solution. Key advantages include:

• compliance with the factory design – no need for modifications or adjustments during assembly,
• maintaining the standard operating parameters of the turbocharger, which promotes stable power and torque characteristics,
• optimal cost-to-functionality ratio compared to new components,
• can be used in service and repair projects where maintaining the original BMW specification is crucial.

Support in selecting used parts and further development of the turbo system

When assembling a supercharger system or implementing a tuning project, it's important to choose the right original components. If you want to better prepare for purchasing aftermarket components, the article " Buying Used Car Parts and the Most Common Mistakes When Choosing Tuning Parts" will be helpful. It discusses common pitfalls and best practices when selecting such components.

If you are looking for other turbochargers and turbo parts for BMW, check out our turbochargers and parts for BMW category, where you will find a wide selection of compatible original aftermarket parts.