BMW 121715012 Engine Charge Alternator Generator Unit Bosch 3.0L E90

( Manufacturer Part Number: 121715012 ), ( Type: Alternator ), ( Year: 2009 2010 2011 09 10 11 E90 ), ( Oe/oem Part Number: Exch. Generator, 12317551254 7551254 7 551 254 ), ( Amperage: 180 A ), ( Features: Pulley Included ), ( Country Of Origin: Germany )

Review BMW Oem 3.0l Engine Charge Alternator Generator Unit Bosch fits 328I 2009–2011

The BMW 121715012 Charge Alternator Generator Unit is a crucial component of the electrical system in BMW 328i models produced between 2009 and 2011. This unit, manufactured by Bosch, is responsible for converting mechanical energy from the engine into electrical energy to power the vehicle's electrical systems and charge the battery.

The alternator is a key element of the vehicle's charging system. It operates by using a belt connected to the engine's crankshaft to rotate a series of alternator pulleys, which in turn rotate the alternator itself. Inside the alternator, there is a rotor with conductors that generate electricity as it rotates. This electricity is then rectified by the diode rectifier to ensure it is in the correct form to be stored in the battery or used by the vehicle's electrical systems.

This BMW 121715012 alternator features a compact and robust design, ensuring reliable performance even under heavy load conditions. It is also engineered to meet Bosch's strict quality standards, ensuring a long service life and optimal efficiency.

The alternator comes fully assembled and ready to install, making it a convenient solution for those in need of a replacement. It is also compatible with the wiring harness and mounting brackets on the BMW 328i, ensuring a straightforward installation process.

In the event of a failure, symptoms may include a dimly lit dashboard, delayed or non-functioning electrical systems, or a warning light illuminated on the dashboard. Replacing the alternator with a genuine BMW Bosch unit ensures a proper fit, reliable operation, and peace of mind.

In summary, the BMW 121715012 Charge Alternator Generator Unit is an essential component of the electrical system in BMW 328i models from 2009 to 2011. Manufactured by Bosch, it is designed for reliable and efficient performance and is a direct replacement for the original equipment.

Pros and Cons of Buying a Bosch Charging System for a 2009-2011 BMW 328i with a 3.0L Engine

a. Bosch is a renowned automotive parts manufacturer known for producing high-quality components.

b. A Bosch charging system is a direct OEM replacement, ensuring a perfect fit and optimal performance.

c. This Bosch charging system is designed specifically for BMW vehicles, meaning it will meet the unique electrical requirements of the car.

d. The unit is likely to be durable, as Bosch is known for producing long-lasting parts.

e. Installing a Bosch charging system can help prevent potential electrical issues, as a faulty charging system can cause significant damage to the battery and other parts.

a. Bosch charging systems can be more expensive than aftermarket alternatives.

b. Installing the charging system yourself may require advanced technical skills and knowledge of BMW's electrical systems.

c. If the charging system fails shortly after installation, you may need to go through the process of returning or exchanging the part.

When considering purchasing a Bosch charging system for a 2009-2011 BMW 328i with a 3.0L engine, it is essential to weigh the pros and cons to make an informed decision. The advantages of buying a Bosch charging system include its OEM quality, durability, and optimal performance. However, the cons include the higher cost and potential complexity of installation.

If you have the necessary technical skills and are comfortable with the installation process, purchasing a Bosch charging system for your BMW 328i could be an excellent investment. However, if you are not confident in your abilities or prefer to save some money, you may consider an aftermarket alternative. Regardless of your choice, ensure you source your parts from a reputable supplier to guarantee the best possible outcome.

Details:

Perfect for BMW 328I owners looking a reliable alternator replacement, this unit is top choice maintaining vehicle performance.

part #: 121715012 prices

• $75.00-$200.00

specifications altnagen:

• for models: 328i
• for makes: Bmw
• for years: 2009-2011
• mpn: 121715012
• type: Alternator
• year: 2009 2010 2011 09 10 11 E90
• oe/oem part number: Exch. Generator, 12317551254 7551254 7 551 254
• amperage: 180 A
• features: Pulley Included
• country of origin: Germany

shipping altnagen:

• service: USPS Ground Advantage
• transit: 5-8 Days
• type: Calculated
• cost: $0.00
• class: Standard
• carrier: USPS

offer altnagen:

• quantity: 1
• sold: 0
• options: Ship-to-home
• started: May 28, 2026
• availability: In Stock

seller altnagen:

• city: Kansas City, Missouri
• # reviews: 846
• rating: 99.8%

general altnagen:

• Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Alternators Generators
• condition: Used

payments altnagen:

• other
• credit card: Diners-club
• wallet: Google-pay

returns altnagen:

• policy: No Returns

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