What is the function of an alternator in a car?

An alternator is a device that converts mechanical energy from the engine's crankshaft into electrical current that powers the car's systems and charges the battery.

What is the difference between an alternator and a generator?

A generator is the general term for a device that produces electricity. An alternator is a specific type of AC generator used in cars.

What does the term "compact alternator" mean?

A compact alternator is reduced in size and weight while maintaining the same power output. It is often used in newer generation cars.

What are the symptoms of a faulty alternator?

The most common include: battery light on, flashing lights, bearing noise, and voltage drops.

Are used alternators a good choice?

Yes, alternators used from a reliable source are an economical and ecological solution that allows you to reduce operating costs.

How do I check if the alternator will fit my car?

It is best to use the VIN number or compare the OEM part number – this guarantees full compatibility.

How much current should a functioning alternator generate?

A standard alternator in a passenger car should maintain a voltage of 13.8–14.4 V at a current of up to 150 A.

Alternators and generators

At Global Parts, we offer a wide selection of original used car parts, including alternators and generators for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our alternators and generators undergo quality control to ensure you receive a top-quality product.

More information

Make

Category

Subcategory

Condition

In Stock

Price

Products in promotion

Part no. 7808074

BMW E70 LCI F10 Alternator Generator Engine 180A Valeo N57 Diesel 7803724

Product currently unavailable

Part no. A0009063000

Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000

Product currently unavailable

Part no. 7576921-1

Mini Cooper R55 R56 R57 R58 Petrol Engine Alternator Generator 7576921

Product currently unavailable

Part no. 8380998

BMW X5 Series E53 M57 M57N 3.0d Diesel Webasto Auxiliary Heater 8380998

Product currently unavailable

Part no. 7515029

Mini Cooper One R50 R52 Petrol W10 Compact Alternator 105A 7515029

Product currently unavailable

Part no. 7615484-1

Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A

Product currently unavailable

Part no. A2711541402

Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402

Product currently unavailable

Part no. A0009067900

Alternator Mercedes W204 W212 Diesel Engine OM651 Valeo 180A A0009067900

Product currently unavailable

Part no. 03D903025J

Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J

Product currently unavailable

Part no. A0009067500

Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A 14V A0009067500

Product currently unavailable

Part no. 7646814

BMW F10 F20 LCI F30 B47 Diesel Alternator Generator Denso 210A 7646814

Product currently unavailable

Part no. 7515030-1

Mini Cooper S R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030

Product currently unavailable

Part no. A0141542702

Alternator Mercedes Vito W639 Sprinter W906 Generator 14V 120A Bosch A0141542702

Product currently unavailable

Part no. 7550469-2

BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469

Product currently unavailable

Part no. A6461541102-1

Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102

Product currently unavailable

Part no. 7605060-1

Engine Alternator BMW F20 F21 F30 LCI Generator Lucas 170A N13 Petrol 7605060

Product currently unavailable

Part no. 7823343

Alternator BMW F20 F21 F30 F31 F32 N47N Diesel Generator 180A 7823343

Product currently unavailable

Part no. A2721540002

Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A A2721540002

Product currently unavailable

Part no. 7797521

BMW E60 E61 E63 E65 E83 Alternator Generator VALEO 170A 7797521

Product currently unavailable

Part no. 059903016JX

Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J

Product currently unavailable

Part no. A6461541102

Alternator Mercedes Vito W639 Sprinter W906 14V 180A Generator Valeo A6461541102

Product currently unavailable

Part no. 7555926-1

BMW E60 LCI E81 E90 E91 Petrol Alternator Generator Bosch 180A

Product currently unavailable

Part no. A6421540502

Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502

Product currently unavailable

Part no. A0009063903

Alternator Generator Mercedes W205 W213 Diesel Engine Valeo 200A A0009063903

Product currently unavailable

Part no. 7823344-1

BMW 1 3 4 F20 F21 F30 F31 F32 N47N Diesel Alternator 180A 7823343 7823344

Product currently unavailable

Part no. CC1T-10300-BC

Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BC

Product currently unavailable

Part no. A0009068504

Alternator Mercedes Vito W447 Engine Generator 200A Valeo A0009068504

Product currently unavailable

Part no. 7519721

BMW 3 5 7 X3 Series E46 E60 E61 E65 E66 E83 M54 Alternator Generator 150A BOSCH

Product currently unavailable

Part no. A1561540102

Mercedes W204 C63 AMG M156 Engine Alternator Generator BOSCH 180A A1561540102

Product currently unavailable

Part no. 7806779

MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970

Product currently unavailable

Part no. 7543083-3

Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970

Product currently unavailable

Part no. 8488548

High Voltage Inverter BMW i3 I01 Hybrid 120Ah Rex Electrical Machine 8488548

Product currently unavailable

Part no. 7797660

Alternator BMW X3 E46 X5 E53 E85 Diesel Generator 150A 7797660

Product currently unavailable

Part no. A0141542702-1

Alternator Generator Mercedes Vito W639 Sprinter W906 14V 120A Bosch A0141542702

Product currently unavailable

Part no. 06J903023H

Volkswagen Golf Mk7 5G Alternator Generator 2.0 TFSI CHHA 06J903023H

Product currently unavailable

Part no. A2721540002-1

Alternator Generator Mercedes R171 W209 W211 M272 Petrol Engine 150A A2721540002

Product currently unavailable

Part no. 7808073-1

BMW E90 E91 E92 E93 LCI Diesel N57 Alternator Remy 150A 7808073 DRA0429

Product currently unavailable

Part no. 7542529-3

BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

Product currently unavailable

Part no. 7555926-2

BMW E60 E81 E90 E91 Petrol Alternator Generator 180A 7555926

Product currently unavailable

Part no. A0009063322-1

Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322

Product currently unavailable

Part no. 7550997-1

Mini Cooper One R50 R52 W10 Petrol Alternator Generator 110A 7550997 7515426

Product currently unavailable

Part no. A0131540002

Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002

Product currently unavailable

Part no. 7575650-1

Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650

Product currently unavailable

Part no. 06H903016L

Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L

Product currently unavailable

Part no. 7550319

Mini R50 R52 Alternator Generator 110A Benzin 7550997 7550319

Product currently unavailable

Part no. A6461540102-1

Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102

Product currently unavailable

Part no. 03G903016A

Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A

Product currently unavailable

Part no. A0009063622

Mercedes W166 W204 R231 Alternator Generator 180A 14V A0009063622

Product currently unavailable

Part no. 7574365-1

Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365

Product currently unavailable

Part no. 7576921

Mini Cooper R55 R56 R57 Mitsubishi Engine Alternator Generator Petrol 7576921

Product currently unavailable

Part no. A0009063701

Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701

Product currently unavailable

Part no. 8509023-1

Alternator Generator BMW E90 E91 E92 E93 LCI E84 F25 Diesel N47N 8507624

Product currently unavailable

Part no. 8573116

BMW 5 Series F10 F11 LCI B47 Cable Alternator Starter 8573116

Product currently unavailable

Part no. A0141541302

Alternator Mercedes W164 W221 W251 Engine Generator 220A Valeo A0009063522

Product currently unavailable

Part no. 231008633R

Renault Trafic Vauxhall Vivaro 1.6 dCi Diesel Alternator Generator 231008633R

Product currently unavailable

Part no. 04B903023B

Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D

Product currently unavailable

Part no. 06F903023D

Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D

Product currently unavailable

Part no. 7802928

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

Product currently unavailable

Part no. 4868429AD

Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD

Product currently unavailable

Part no. A0009061903

Mercedes W176 W242 W246 Alternator Generator Bosch M270 Petrol A0009061903

Product currently unavailable

Part no. A2711541402-1

Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402

Product currently unavailable

Part no. 7519618

BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618

Product currently unavailable

Part no. A0009068802-3

Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802

Product currently unavailable

Part no. A0131541002

Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

Part no. A6461540002

Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002

Product currently unavailable

Part no. A0009068802-1

Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802

Product currently unavailable

Part no. A0001502550

Mercedes ML W163 Alternator Generator A0001502550

Product currently unavailable

Part no. 079903021JX

Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J

Product currently unavailable

Part no. 7797661

Alternator BMW X3 E53 X5 E83 M57N2 Generator Diesel Power 150A 7797661

Product currently unavailable

Part no. 7550469-1

Alternator Generator BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Petrol 180A 7550469

Product currently unavailable

Part no. 7640132-3

BMW F20 LCI F30 Mini F56 F60 Alternator Generator DENSO 180A 7640132

Product currently unavailable

Part no. 8626086-1

Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086

Product currently unavailable

Part no. 7533270

Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270

Product currently unavailable

Part no. 045903143E

VW Volkswagen Polo 9N 1.4 TDI Alternator Bracket Mount Carrier 045903143E

Product currently unavailable

Part no. 2247391

BMW X5 Series E53 M57 3.0d Diesel Engine Starter Motor 2247391

Product currently unavailable

Part no. A2711540902

Alternator Generator Mercedes W203 W209 M271 Engine Valeo 120A 14V A2711540902

Product currently unavailable

Part no. 7533837

BMW 5 6 7 E60 E61 E63 E65 N62 N62N Alternator Supporting Bracket Mount 7533837

Product currently unavailable

Part no. 7649390

BMW F45 i8 Mini F60 B38 B38X Hybrid Engine Alternator Generator 7649390

Product currently unavailable

Part no. 7521383-1

BMW E46 N42 316i 318i Petrol Engine Alternator Generator Remy 7521382

Product currently unavailable

Part no. 231001423R

Renault Trafic Vauxhall Vivaro 2.0 DCI Diesel Alternator Generator 231001423R

Product currently unavailable

Part no. 03D903025J-1

Seat Ibiza Volkswagen Polo Mk5 6R 1.2 Petrol Alternator Generator 03D903025J

Product currently unavailable

Part no. A0009062609

Mercedes C118 W177 W247 Three Phase Alternator A0009062609

Product currently unavailable

Part no. 03G903016EX

Audi A4 B8 2.0 TDI Alternator Generator 03G903016EX

Product currently unavailable

Part no. 7550997-2

Mini Cooper One R50 R52 W10 Petrol Alternator Generator 110A 7550997 7515426

Product currently unavailable

Part no. A0131541002-2

Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

Part no. 7552815

BMW Z4 E89 23i 30i N52N Alternator Denso 170A 7552815

Product currently unavailable

Part no. 8570673

BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672

Product currently unavailable

Part no. 6C1T-10300-CD

Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CD

Product currently unavailable

Part no. 7802471-1

Alternator Generator BMW E87 E90 E91 Diesel Engine Electrical Unit 150A 7802471

Product currently unavailable

Part no. 7615484-2

Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A

Product currently unavailable

Part no. 03L903017B

Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B

Product currently unavailable

Part no. 8200690199

Renault Trafic II Alternator Generator 120A SG12B050 8200690199

Product currently unavailable

Part no. 03C903023S

Audi A1 8X 1.4 TSI CAXA Alternator 03C903023S

Product currently unavailable

Part no. 7834160

BMW E60 M5 E63 E64 M6 S85 Alternator Generator 170A 7834160

Product currently unavailable

Part no. 7604782-1

MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782

Product currently unavailable

Part no. 7542529-2

BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

Product currently unavailable

Part no. A0131545902

Alternator Generator Mercedes W211 S211 OM646 Diesel Engine 200A A0131545902

Product currently unavailable

Part no. 8570676

BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675

Product currently unavailable

Part no. A0009062100

Mercedes W212 Engine Alternator Generator A0009062100

Product currently unavailable

Showing 100-198 of 478 products

Efficient alternators and generators – reliable power source for your vehicle

A wide range of alternators and generators – tailored to various car models

Alternators and generators are key components of a vehicle's electrical system, responsible for generating the electricity needed to power all vehicle systems and charge the battery. Their proper operation ensures voltage stability, the reliability of electrical devices, and the comfort of vehicle operation. At the Global Parts automotive store , you'll find a wide selection of used car parts , including alternators and generators, perfectly matched to brands such as BMW , Audi , and more. Mercedes , Volkswagen , Mini and others.

Types of alternators and generators

Alternators are divided into classic and compact types. Compact alternators are smaller, lighter, and often used in modern cars, where space and weight reduction are key. Generators used in heavier vehicles, such as delivery vans or off-road vehicles, are more powerful to meet higher energy demands. Typical alternator output in passenger cars is between 70 and 150 amps, while in heavy-duty vehicles, it can reach up to 200 and 300 amps .

What functions do alternators and generators perform?

Alternators and generators play a key role in the functioning of a vehicle's electrical system:

Generating Electricity – Converts mechanical energy into electrical energy that powers all vehicle systems.
Battery Charging – Provides a constant supply of power, keeping the battery fully charged.
Voltage regulation – Built-in voltage regulators maintain stable voltage, protecting electrical devices from damage.
Support for electrical systems – They power lighting, air conditioning, radios and other devices, ensuring their uninterrupted operation.

Table – typical symptoms and parameters of alternators

Symptom	Possible cause	Technical parameter
Poor battery charging	Worn out voltage regulator	Operating voltage: 13.8–14.4 V
Squeaking noises when the engine is running	Damaged drive belt	Power consumption: 1.5–2.5 kW
Flickering lights	Incorrect voltage stabilization	Current: 90–150 A (passenger)
No charging	Rotor or diode bridge failure	Power: 1.2–3.0 kW

Why is it worth taking care of alternators and generators ?

A damaged or malfunctioning alternator or generator can lead to power issues and shorten the life of the battery. Typical symptoms include:

Discharged battery – May be due to faulty charging.
Battery light on dashboard – Indicates problems with the alternator or generator.
Unusual noises – Squeaks or grinding sounds may indicate worn bearings or drive belt.
Voltage fluctuations – May indicate problems with the voltage regulator. If you need a replacement, you'll find the right used car parts at Global Parts that will restore the full functionality of your electrical system.

How to choose the right alternators and generators ?

When choosing alternators and generators, there are several key aspects to consider:

Vehicle-specific fit – Every electrical system has its own specific technical requirements. At Global Parts, you'll find alternators and generators perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini , and more .
Technical condition – Used alternators and generators should be fully functional, free from mechanical and electrical damage.
Type and Capacity – Make sure the alternator or generator you choose has the correct power and voltage to meet your vehicle’s requirements.

Compatibility and fit

When choosing an alternator, it's important to match not only the vehicle brand but also the specific engine version. For example, the alternator in a BMW 320d (E90) differs in parameters from the alternator in a BMW 318i (E46), even though both models belong to the same 3 Series. Therefore, filtering parts catalogs by VIN or OEM specification is crucial. This ensures compatibility with the vehicle's electrical system and avoids installation issues.

Why choose used alternators and generators ?

Used car parts, such as used alternators and generators, are an economical solution that allows you to save money while maintaining high quality. By choosing used electrical components, you benefit from:

Lower costs – Used alternators and generators are much cheaper than new ones, but offer just as high quality.
Ecology – Recycling parts supports environmental protection and reduces waste.
A wide range of products – In our store you will find used alternators and generators to the most popular car brands.

How to take care of alternators and generators ?

To ensure that alternators and generators operate reliably for a long time, it is worth following a few rules:

Regular inspections – Check the condition of the alternator and generator during technical inspections.
Maintain your drive belt – Make sure the belt is properly tensioned and shows no signs of wear.
Cleaning and maintenance – Regularly remove dirt and check the condition of electrical connections.
Avoid overloads – Too many electrical devices connected at once can overload the system. If you need a replacement, you will find the right car parts at Global Parts that will ensure the durability and efficiency of your electrical system.

FAQ - Frequently asked questions about alternators and generators

Question	Answer
What is the function of an alternator in a car?	An alternator is a device that converts mechanical energy from the engine's crankshaft into electrical current that powers the car's systems and charges the battery.
What is the difference between an alternator and a generator?	A generator is the general term for a device that produces electricity. An alternator is a specific type of AC generator used in cars.
What does the term "compact alternator" mean?	A compact alternator is reduced in size and weight while maintaining the same power output. It is often used in newer generation cars.
What are the symptoms of a faulty alternator?	The most common include: battery light on, flashing lights, bearing noise, and voltage drops.
Are used alternators a good choice?	Yes, alternators used from a reliable source are an economical and ecological solution that allows you to reduce operating costs.
How do I check if the alternator will fit my car?	It is best to use the VIN number or compare the OEM part number – this guarantees full compatibility.
How much current should a functioning alternator generate?	A standard alternator in a passenger car should maintain a voltage of 13.8–14.4 V at a current of up to 150 A.

Summary: Alternators and Generators at Global Parts Automotive Store

Alternators and generators are essential components of the electrical system, ensuring reliable power and the proper operation of all vehicle systems. By maintaining their technical condition, you can avoid power problems and extend the life of the entire electrical system. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , and more, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

car parts used parts mercedes car parts mini used car parts bmw genuine parts motor store genuine used parts for volkswagen bmw alternators & generators mercedes alternators & generators mini alternators & generators audi alternators & generators volkswagen alternators & generators