BMW E60N E61N E81 E87N E88 E90 E91 E92 E93 Alternator 7550469

BMW E81 E87 LCI E90 Alternator 180A N43 is an original part from the Alternators and Generators group, designed for charging systems in BMW cars with an N43 engine. This used OEM component ensures a factory fit, stable operating parameters, and proper integration with the vehicle's electrical system.

Specifications and technical data

• SKU: 7550469
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7550469
• Substitutable numbers: 12317550469, 7550469, 51167145267, 7145267
• Category: Alternators & Generators

Purpose and Compatibility

The 180A alternator is designed for BMW 1 Series E81 / E87 LCI and 3 Series E90 models equipped with the N43 engine. Its OEM construction ensures a precise fit with factory mounting points, electrical connections, and charging system characteristics, facilitating installation and minimizing compatibility issues.

This component belongs to the Alternators and Generators group, responsible for powering all key electrical consumers in the vehicle and ensuring proper battery charging while driving.

Operating Parameters and Benefits of Use

The 180A current output provides sufficient power reserve for the electrical system typical of BMW models with the N43 engine, even under higher loads (lighting, comfort systems, onboard electronics). Using an original BMW design promotes stable operation across the full engine speed range and proper integration with the control system.

• Factory fit for N43 engines in BMW E81, E87 LCI, and E90,
• Adequate current reserve for the stock electrical system,
• Maintenance of proper battery charging parameters,
• Compatibility with factory brackets and wiring harness.

Product Characteristics and Installation

This alternator comes from the BMW offering, meaning it retains the original housing geometry, mounting point layout, and connectors. This simplifies installation in place of a worn-out part without the need for wiring modifications or additional adapters. The used nature of the part allows for an economical replacement while maintaining the proper quality of workmanship typical of OEM components.

Before installation, it is recommended to perform a standard check of the alternator drive system (belt, pulleys, tensioner) and inspect the condition of ground and power connections to fully utilize the potential of the newly installed component.

Selection by Part Numbers and Purchase Security

The alternator has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. It is advisable to compare these markings with the removed part or service documentation to confirm compatibility. The specification description also includes reference numbers to help avoid ordering errors.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as alternators with different capacities, auxiliary generators, or related mounting components, check the available parts in the BMW Alternators and Generators category.

For drivers interested in a broader perspective on used drivetrain components and parts interacting with the drive system, the following guide may be useful: Used Differentials – What You Should Know About Second-Hand Differentials, Sensors, and Drive Systems.