BMW F10 F20 LCI F30 B47 Diesel Alternator Generator Denso 210A 7646814

BMW F10 F20 LCI F30 B47 Diesel Alternator Generator Denso 210A is an original component from the Alternators and generators group, designed for use with BMW F-series diesel units with the B47 engine. This used OEM component ensures proper battery charging, stable power supply for the electrical system, and compatibility with the vehicle's factory electrical architecture.

Specifications and technical data

• SKU: 7646814
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7646814
• Substitutable numbers: 12317646814, 7646814, 104210-6982
• Fuel type: Diesel
• Category: Alternators & Generators

Purpose and compatibility

The engine alternator is dedicated to BMW F-series models, in particular the F10, F20 LCI, and F30 equipped with the B47 diesel engine. The OEM design guarantees a proper fit to the mounting points, correct routing of the accessory belt, and compliance with the operating parameters of the Diesel engine unit.

Thanks to the retention of factory mounting points and electrical connectors, the alternator works with the original engine control unit and onboard systems without the need for installation modifications.

Function in the electrical system

The alternator is responsible for converting mechanical energy from the crankshaft into electrical energy, powering key vehicle systems such as:

• starting system and battery charging,
• engine control units and safety systems,
• exterior and interior lighting,
• comfort electrical equipment (air conditioning, multimedia, power steering).

Selecting an alternator compatible with the B47 unit is essential for maintaining stable voltage in the system, which translates into trouble-free operation of electronics and a lower risk of voltage drops under heavy load.

Benefits of using an original BMW alternator

Using an original alternator from the Alternators and generators group ensures:

• factory fitment for the B47 engine and accessories,
• proper cooperation with the energy management system in BMW vehicles,
• appropriate charging characteristics for diesel engines,
• preservation of the durability and operational stability designed by the manufacturer.

The used OEM component is a cost-effective solution while maintaining the original technical specification and compatibility with factory components.

Condition, verification, and selection based on technical data

The alternator is offered as a used part, which allows for reduced repair costs while maintaining the quality of an original component. Before installation, it is recommended to verify compatibility with the vehicle based on the OEM part number and interchangeable numbers, as well as to compare the fuel type and engine generation.

For correct selection, it is worth using the manufacturer's markings and vehicle data (model, generation, Diesel engine type) to ensure full mechanical and electrical compatibility with the existing charging system.

Charging system expansion and technical knowledge

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 additional generators, alternators with different output, or compatible belt drive components, check the available parts in the BMW alternators and generators category.

When working with used electrical and electronic components, it is worth expanding your knowledge of selection and installation principles – you can find practical tips in the article guide on used automotive electronics and control modules, which discusses, among other things, selection by OEM numbers, compatibility issues, and the most frequently asked questions related to installation.