BMW E60 LCI E82 E92 LCI Alternator Generator 12V 180A Bosch Petrol 0121715012

BMW E60 LCI E82 E92 LCI Alternator Generator 12V 180A Bosch Petrol is an original component from the Alternators and generators group, designed for BMW vehicles with petrol engines. High current efficiency and a design developed by Bosch ensure a stable power supply for the electrical system and efficient battery charging under demanding operating conditions.

Specifications and technical data

• SKU: 7555926-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555926
• Substitutable numbers: 12317555926, 7555926, 12317551254, 7551254, 7550968, 7551256, 12317551256, 0 121 715 012, 0121715012
• Fuel type: Petrol
• Category: Alternators & Generators

Purpose and operating parameters

The presented alternator is designed for 12V electrical systems in BMW 5 Series E60 LCI, 1 Series E82, and 3 Series E92 LCI models with petrol engines. A high current output of 180A allows for reliable power supply to extensive onboard electronics, comfort systems, and additional equipment, which is particularly important in modern BMW designs.

Thanks to the use of Bosch technology, the alternator is characterized by stable charging characteristics across a wide engine speed range, which reduces voltage drops and supports the proper operation of control units, comfort modules, and safety systems.

Construction and design advantages

The Bosch alternator used in this BMW model utilizes a proven design integrated with a voltage regulator, which simplifies installation and maintenance. A robust housing and a properly designed cooling system contribute to the component's durability during long-term operation in the engine bay.

Key design advantages include:

• efficient operation under high electrical load,
• stable charging voltage supporting battery longevity,
• compatibility with factory BMW mounts and accessories,
• design solutions that reduce vibration and operating noise.

Condition, origin, and fitment

The offered alternator is a used part, sourced from vehicle dismantling, which allows for an economical repair of the charging system while maintaining original BMW and Bosch quality. This type of part is particularly attractive to users who want to maintain component consistency with the vehicle's factory specifications.

The alternator has a dedicated OEM part number and a set of interchangeable numbers, which facilitates precise matching to a specific engine version and model year. Before purchasing, it is recommended to compare the markings with your vehicle's data or consult a mechanic to ensure full installation compatibility.

Operation and role in the electrical system

In BMW cars with petrol engines, the alternator is responsible for powering all electrical consumers and charging the battery while the engine is running. A functional component of this type minimizes the risk of starting problems, control unit errors, or unstable operation of comfort systems.

Replacing the alternator with an original Bosch unit with the correct 180A output is particularly important in vehicles equipped with extensive electronics, multimedia systems, and additional power consumers. This ensures the charging system maintains a power reserve and the electrical installation operates within safe parameter ranges.

If you are planning a comprehensive repair or upgrade of the charging system area in your BMW and need other components from the same group, such as alternators with different outputs, generators for other engine versions, or compatible mounting components, check the available parts in the BMW Alternators and generators category.

Technical support and knowledge about BMW electronics

When working on the charging system, it is worth paying attention to the general condition of the electrical installation, control modules, and comfort systems. For 3 Series and 5 Series users who want to better understand the relationships between the alternator, control units, and the iDrive system, the following guide article may be helpful: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using dismantled parts?.