BMW 1 3 E87 E90 E91 E92 M47N2 M57N2 Alternator Bosch Diesel 150A 0 986 080 580

BMW 1 3 E87 E90 E91 E92 M47N2 M57N2 Alternator Bosch Diesel 150A is an original component from the Alternators and generators category, designed for BMW diesel engines. This used OEM part ensures proper charging of the electrical system, stabilizing the operation of all electrical consumers in a vehicle powered by Diesel fuel.

Specifications and technical data

• SKU: 7802927-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7802927
• Substitutable numbers: 12317802927, 7802927, 0 986 080 580, 0986080580, H54390A, BG
• Fuel type: Diesel
• Category: Alternators & Generators

Purpose and function of the alternator

The offered alternator is dedicated to M47N2 and M57N2 power units in BMW E87 and E90 series diesel models. Its task is to convert mechanical energy from the crankshaft into electrical energy, which is necessary to power control units, safety systems, lighting, and to charge the battery while the engine is running.

Thanks to its factory design, the alternator works seamlessly with original engine accessories, which reduces the risk of charging voltage issues, communication errors with the vehicle's electronics, and excessive load on the accessory belt.

Benefits of using an original BMW alternator

Using an original alternator in a BMW diesel engine provides a number of practical technical benefits:

• factory fitment for mounts and the accessory drive system in M47N2 and M57N2 units,
• proper compatibility with factory charging control and electrical installation,
• maintenance of the correct current characteristics for consumers typical of E87 and E90 models,
• reduction of the risk of electronic system errors resulting from incorrect voltage.

A used OEM component is a sensible choice for repairing the charging system when you want to maintain the original specifications without having to use aftermarket parts with uncertain parameters.

Condition, verification, and fitment

The alternator comes from disassembly and is offered as a used component, which allows for an economical repair while maintaining the original build quality characteristic of the BMW brand. Before installation, it is recommended to perform a standard check of the vehicle's electrical system, the condition of the accessory belt, and ground connections to fully utilize the potential of this alternator.

For proper part selection, it is worth paying attention to OEM markings and available interchangeable numbers in the technical specification – this allows you to confirm compatibility with a specific engine version and vehicle model year, as well as avoid problems with installation or differences in electrical parameters.

Reference numbers and documentation compliance

The presented alternator has an assigned OEM part number and associated interchangeable numbers, which have been verified against BMW and accessory manufacturer catalogs. This allows you to easily compare data with service documentation or an online catalog and ensure that the offered element meets the requirements of your specific vehicle.

All relevant identifiers, including the SKU, brand, and fuel type, can be found in the technical specification section – this is where you will find the current information necessary for precise part selection.

Charging system expansion and related components

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, auxiliary generators, or alternators with similar specifications, check the available parts in the BMW alternators and generators category.

For those interested in a broader look at selecting used components for turbocharged units and the impact of accessories on engine performance, the article describing the comparison of turbochargers and practical installation tips may be helpful: Go-Kart Feeling XXL – used N18 turbocharger versus B48 in Mini Cooper S.