BMW E81 E87 LCI 123d N47S Housing Cover Turbocharger Turbo Part 7804638 7800607

BMW E81 E87 123d Turbocharger Housing Cover is an original component from the turbocharger and parts category, designed for factory supercharging systems in BMW 1 Series models. The used housing allows for economical, yet precise repair of the turbocharger, while maintaining the correct geometry and fit to the drive unit.

Specifications and technical data

• SKU: 7804638-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7804638
• Substitutable numbers: 11657804638, 7804638, 7800607
• Category: Turbos & Parts

Intended use and fit for BMW 123d

The BMW E81 E87 123d turbocharger cover housing was designed as a component of the turbocharging system in 1 Series diesel engines. The OEM design ensures proper exhaust gas and charge air routing, which has a direct impact on the stable operation of the turbine and maintaining the standard parameters of the drive unit.

By using the original cover, the factory arrangement of the ports, channels, and mounting points is preserved, simplifying installation and reducing the risk of leaks in the turbocharger system. This solution is particularly beneficial when reconditioning a turbocharger, where the housing requires replacement while the remaining components remain functional.

Construction and technical characteristics

The housing is one of the components responsible for maintaining the proper stiffness and tightness of the turbocharger. The carefully selected housing material allows for operation at elevated temperatures and under variable loads typical of turbocharged engines.

Key design advantages include:

• Factory mounting points – for easy installation in place of a worn or damaged cover.
• Appropriately shaped flow channels – supporting the correct flow of exhaust gases or air within the turbocharger.
• Compatibility with original components – the housing works with the standard turbocharger components used in the BMW 123d.

This housing design allows the standard operating characteristics of the supercharging system to be maintained without the need to modify the vehicle's installation.

Used condition and economic benefits

The component is offered in used condition, which represents a favorable compromise between repair costs and maintaining original build quality. A used turbocharger cover housing is a particularly attractive solution for turbocharger system rebuilds, where cost reduction while maintaining proper fitment to a specific BMW model is a priority.

Choosing a genuine, used part from the turbocharger and parts category avoids the problems common with some aftermarket parts, such as poor fit and the need for assembly modifications. This is a practical option for BMW repair shops and users who want to restore turbocharger performance without breaking the bank.

If you want to better understand the differences between original, replacement and used parts and their long-term cost-effectiveness, it is worth reading the article: Original, replacement or used parts – what to choose when repairing a turbocharger?

Application in turbocharger service and regeneration

The BMW E81 E87 123d Turbocharger Housing Cover is suitable for both professional services and turbocharger remanufacturing workshops. By maintaining the factory housing geometry, it is possible to:

• restoring the standard turbocharger configuration after housing damage,
• reduced assembly time thanks to tailored mounting points,
• maintaining the correct course of flow channels in the charging system.

The use of original housing components is particularly important in engines with higher specific power, where the stability of the turbocharger operation has a direct impact on the durability of the drive unit and its operating culture.

Other turbochargers and parts for BMW

If you're looking for other turbochargers and parts for BMW, including housings, covers, and turbocharger accessories, check out our dedicated category: Turbochargers and Parts for BMW . This will make it easier to select compatible components for your model while maintaining the integrity of your entire turbocharger system.