BMW E60 E90 Alternator Generator 150A 335d 525d 530d 535d M57N2 7800308

BMW E60 E90 Alternator Generator 150A 335d 525d 530d 535d M57N2 is an original component from the Alternators and generators group, designed for advanced BMW M57N2 series diesel engines. This used OEM part ensures proper charging of the electrical system, stable operation of engine accessories, and compliance with the manufacturer's factory requirements.

Specifications and technical data

• SKU: 7802928
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7802928
• Substitutable numbers: 12317802928, 7802928, 12317800308, 7800308
• Category: Alternators & Generators

Purpose and compatibility

The presented alternator is designed for use in BMW 3 Series E90 and 5 Series E60 models with 335d, 525d, 530d, and 535d diesel engines from the M57N2 family. This ensures a perfect fit for the specific requirements of the powertrain, electrical load characteristics, and the wiring architecture of these units.

Thanks to its OEM design, the alternator works seamlessly with the factory engine management system, energy management system, and comfort equipment, minimizing the risk of diagnostic errors and compatibility issues.

Function in the vehicle's electrical system

The alternator in M57N2 engines is responsible for:

• continuous battery charging while the engine is running,
• powering high-demand electrical components,
• voltage stabilization in the system under variable loads,
• cooperation with safety and comfort systems, such as power steering, lighting, or onboard electronics.

Selecting an alternator that meets factory specifications is crucial for the reliable operation of the electrical system and for limiting voltage drops that can lead to system errors.

Advantages of using an original BMW alternator

Using an original BMW alternator in M57N2 engines offers a range of technical benefits:

• Factory fit – compatibility with mounting points, pulley diameters, and the accessory belt tensioner system.
• Correct charging characteristics – the alternator is adapted to the load generated by the extensive electronics of E60 and E90 models.
• Stable integration with energy management systems – no need for adaptation or installation modifications.
• Reduced risk of improper battery operation and shortened battery lifespan.

For users expecting durable and predictable performance from their charging system, choosing this component is a technically safe and economically sound solution.

Condition and service application

The offered alternator is a used part, making it an attractive option for maintenance repairs or restoring the charging system's efficiency in high-mileage vehicles. This type of component is suitable both for the typical replacement of a worn-out alternator and for comprehensive engine accessory servicing in fleet or heavily used vehicles.

By choosing this product, you gain an original BMW component specifically designed to work with M57N2 units, which facilitates installation and reduces vehicle downtime at the workshop.

BMW alternators and generators – expansion and modernization

If you are planning a comprehensive repair or upgrade of your BMW's engine bay and need other items from the same group, such as different types of alternators, generators, or related accessory drive components, check out the available parts in the BMW Alternators and generators category.

Additional technical support

When planning broader service work, it is worth paying attention to the condition of other drivetrain and chassis components, including wheels and tires. For optimal selection and potential refurbishment of alloy wheels, our practical guide will help you: Used wheels like new – a guide to buying and refurbishing alloy wheels.