BMW X5 F15 F20 F21 F22 F30 F31 Alternator Generator 14V N47N Diesel 7823345

BMW X5 F15 F20 F21 F22 F30 F31 Alternator 14V N47N Diesel is an original part from the Alternators and Generators group, designed for cooperation with BMW diesel engines. The used OEM alternator ensures proper 14V charging and stable operation of electrical systems in vehicles with the N47N Diesel unit. This is a solution for users who expect factory fitment and proven construction without the need for unknown origin replacements.

Specifications and technical data

• SKU: 7823345
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7823345
• Substitutable numbers: 7823345, 12317823345, 12318579419, 8579419, 12317823347, 7823347
• Fuel type: Diesel
• Part type: Alternator
• Category: Alternators & Generators

Purpose and Compatibility

The presented alternator has been designed for BMW X series and 1, 2, and 3 series models, including X5 F15, F20, F21, F22, F30, and F31, equipped with the N47N diesel engine. The OEM construction guarantees correct mounting positions, appropriate electrical connections, and proper cooperation with the factory engine control unit in vehicles with a 14V system.

Thanks to the use of a dedicated solution for Diesel units, the alternator is adapted to the load characteristics typical for modern injection systems, pre-heating systems, and extensive onboard electronics in BMW cars.

Operating Parameters and Role in the Electrical System

The 14V alternator is responsible for converting mechanical energy from the crankshaft into electrical energy, powering all consumers in the vehicle and charging the battery. In vehicles with the N47N engine, stable charging voltage is crucial for:

• proper operation of the engine control unit and safety systems,
• maintaining the efficiency of comfort systems (air conditioning, heating, multimedia),
• ensuring adequate starting energy levels in urban conditions and on long journeys.

A properly selected alternator from the Alternators and Generators group minimizes the risk of voltage drops, electronic errors, and starting problems, which is particularly important in intensively used diesel-powered vehicles.

Product Characteristics and Advantages of Using OEM

As an OEM part from BMW, the alternator is structurally compliant with the vehicle manufacturer's factory requirements. This means:

• factory fitment to the mounts and accessories of the N47N engine,
• compatibility with original wiring harnesses and connectors,
• operating parameters adapted to the electrical loads of the specific vehicle configuration.

Choosing a used OEM alternator allows for maintaining the consistency of the electrical system, reducing the risk of incompatibility, and preserving the charging characteristics intended by the manufacturer. This is especially important in modern BMWs, where the charging system cooperates with energy management systems and onboard diagnostics.

Condition, Verification, and Selection by Technical Data

The offered alternator is a used part, which in practice means a favorable cost-to-quality ratio while maintaining the original BMW construction. Before installation, standard verification of compatibility by OEM part number and interchangeable numbers is recommended, as well as matching it to the specific N47N Diesel engine version and vehicle year.

When selecting an alternator, it is advisable to use the manufacturer's designations and vehicle data to ensure full compatibility with the 14V system and avoid problems with installation or charging system operation.

If you are planning a comprehensive repair or upgrade of the electrical power supply area in your BMW and need other parts from the same group, such as additional generators, alternators with similar parameters, or compatible charging units, check the available parts in the BMW Alternators and Generators category.

For drivers interested in deepening their knowledge about selecting used OEM parts by numbers and optimal engine unit servicing, an article describing the specifics of five-cylinder engines and the principles of working with original components may be helpful – you can find it here: Audi's Five-Cylinder Engine – A Legend from Quattro to RS3 and How to Care for It with Original Audi Parts.