BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A is an original component from the Alternators and generators group, designed for BMW N47N family diesel engines. This used high-output alternator provides a functional solution for vehicles with extensive electrical equipment, ensuring a stable power supply for all consumers.

Specifications and technical data

• SKU: 7823344-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7823344
• Substitutable numbers: 12317823344, 7823344, 7823343
• Fuel type: Diesel
• Category: Alternators & Generators

Application and compatibility with the N47N Diesel engine

The presented alternator is designed to work with N47N Diesel power units, used in popular BMW F-series models. The design, adapted to the characteristics of a diesel engine, ensures proper charging efficiency at both low and high RPMs, which is important for daily urban and extra-urban driving.

Thanks to its factory origin from the BMW range, the alternator maintains the correct mounting points, geometry, and drive routing, which facilitates installation in place of a worn-out component without the need for modifications. This solution is particularly beneficial for users expecting predictable charging system performance and the maintenance of factory electrical system parameters.

Operating characteristics and benefits of the 175A alternator

The 175A output alternator is adapted to support vehicles equipped with numerous energy consumers, such as multimedia systems, extensive lighting, comfort systems, or additional control modules. The high current reserve reduces the risk of voltage drops under heavy load, which translates into stable operation of the onboard electronics.

Key advantages of this model include:

• factory fitment for BMW diesel powertrains,
• current efficiency adapted to modern electrical installations,
• maintenance of original battery charging characteristics.

For the user, this means more predictable vehicle starting, less strain on the battery, and a reduction in power supply issues during intensive use of electrical equipment.

Condition, origin, and installation aspects

The offered BMW alternator comes from the used original parts segment, which in practice combines an attractive cost with the preservation of a design consistent with the manufacturer's standards. A used component of this class is a good choice for maintenance repairs when compatibility with factory engine accessories is a priority.

The alternator is intended for installation in place of the factory component, maintaining the original mounting layout and electrical connections. Before installation, it is recommended to perform a standard verification of the vehicle's charging system (condition of the belt, tensioner, ground connections) to fully utilize the potential of the installed component and ensure stable operation of the entire system.

Support in selection and charging system optimization

Selecting the right alternator for a specific BMW diesel configuration requires attention to compatibility with the power unit, electrical system, and vehicle equipment. In case of doubts regarding compatibility, it is worth using expert advice and information on part numbers and interchangeable numbers to avoid unnecessary service downtime.

To better understand the principles of professional selection of used components, including charging system elements, it is worth reading the practical tips described in the article: No more bad purchases – how to professionally select used car parts. There you will find information on how to effectively use OEM markings and maintain full vehicle compatibility.

Expanding repairs within the BMW charging 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 alternators with different outputs, generators for other engine versions, or additional charging system components, check the available parts in the BMW alternators and generators category.