BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276

BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH is an original component from the Alternators and generators category, designed for modern BMW F-series powertrains. High current efficiency and factory BMW design ensure a stable power supply for the vehicle's electrical system, which translates into reliable engine and onboard system performance. This is a solution for users looking for a proven, technically matched alternator for M140i and 340i models after the facelift (LCI).

Specifications and technical data

• SKU: 8614276
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8614276
• Substitutable numbers: 12318614276, 8614276
• Category: Alternators & Generators

Purpose and compatibility with BMW models

The presented alternator has been designed for modern BMW petrol engines used in 1 Series F20/F21 and 3 Series F30 models after the facelift. The OEM design guarantees proper mounting positions, correct electrical connections, and compatibility with the factory engine management system. As a result, installation is straightforward, with no need for wiring modifications or mechanical adaptations.

An alternator with these specifications is particularly important in vehicles equipped with extensive electronics, multimedia systems, advanced engine control, and numerous electrical consumers. The factory BMW solution allows for maintaining stable voltage across the entire load range, which reduces the risk of electronic errors and starting issues.

Operating parameters and electrical characteristics

The 180A output alternator provides a high current reserve for all key vehicle systems – from the engine control unit and safety systems to interior comfort features. This characteristic is suitable for the dynamic engines used in the M140i and 340i, where the demand for electrical energy is significantly higher than in simpler configurations.

The factory generator design has been developed to maintain stable charging parameters at both low and high engine speeds. In practice, this means:

• reliable battery charging in city traffic,
• adequate power reserve during dynamic driving,
• increased resistance to temporary electrical load spikes.

Construction, workmanship, and OEM advantages

The alternator comes from the BMW production line, which means it maintains factory quality standards, precise fitment, and compliance with the vehicle manufacturer's requirements. The original OEM design minimizes the risk of improper interaction with engine electronics and eliminates typical problems known from cheaper replacements, such as unstable voltage or premature wear.

As an item from the Alternators and generators category, this model has been designed to operate in the demanding thermal and mechanical conditions of the engine bay. Properly selected bearings, cooling system, and housing design promote long-term, consistent performance during daily vehicle use.

Condition, installation, and service application

The offered alternator is a used component, making it an attractive solution for users seeking a compromise between cost and maintaining factory BMW specifications. This type of part is particularly useful in service repairs where the priority is to restore correct charging and full functionality of the electrical system without investing in a brand-new component.

Thanks to the original mounting design, the alternator can be installed in place of the factory unit, utilizing existing mounting points and factory connectors. This facilitates workshop work and reduces vehicle downtime, while also allowing for compliance with BMW service documentation.

Selection support and additional information

In case of doubts regarding the selection of an alternator for a specific engine version or model year, it is worth verifying compatibility with the vehicle's service documentation or consulting a specialized BMW service center. Information about the OEM part number and available interchangeable numbers can also be helpful to precisely confirm the compatibility of a given unit.

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

To better evaluate when it is worth choosing a used OEM part versus a new replacement, the following article will be helpful: New or used? A comparison of costs and quality of car parts, where you will find practical comparisons, examples, and answers to the most frequently asked questions regarding the selection of components for BMW.