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.

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Part no. 7797661

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

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Audi A4 B7 4.2 FSI V8 Petrol Engine Alternator Generator 079903018X

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Alternator BMW M3 E46 Z3M E36 Petrol S54 Generator Valeo 120A 7831436 7830791

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Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700

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

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BMW F10 F11 X5 E70 Alternator Generator Unit Valeo 230A Diesel Engine 7807187

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Part no. 8634124-1

BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124

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Mini Cooper One R56 Alternator Generator Bosch 150A 7553009

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BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator Valeo 170A 7802929

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

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Part no. 7515030-3

Mini R52 R53 Petrol W11 Compact Alternator Generator 7515030

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Volkswagen Golf Mk8 Audi Q2 GA A3 8V 8Y 1.5 TSI Alternator 14V 140A 05E903026K

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Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D

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Mini R50 R52 Petrol W10 Compact Alternator Generator 105A 7515029

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Peugeot Expert Citroen Berlingo Diesel Engine Alternator Generator 5705AS

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Engine Alternator BMW E60 E61 E65 E66 Diesel Alternator Generator 170A 7789981

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Audi Volkswagen Seat Skoda Engine Alternator Generator 2.0 TDI CAGA 06F903023P

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

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Part no. CC11-199049-AA

Ford Transit Heat Shield Insulation Alternator Engine Cover CC11-199049-AA

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Part no. 7515030-1

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

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Part no. 2C1T10300BA

Ford Transit Mk6 Alternator Engine Generator Valeo 2C1T10300BA

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Part no. 7834160

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

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

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Part no. 074903025K

Alternator Volkswagen LT35 2.5 TDI Diesel Engine Alternator 90A Bosch 074903025K

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Renault Trafic Vauxhall Vivaro 1.6 dCi Diesel Alternator Generator 231008633R

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Part no. 028903028C

Volkswagen Golf Mk4 Alternator Generator BOSCH 14V 70A 028903028C

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Part no. 03C903023A

Audi A1 8X A3 8P Alternator Generator 1.4 TFSI Petrol Engine CAVG 03C903023A

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BMW F45 Alternator Generator 8680374

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Part no. 9646321780

Alternator Generator Peugeot 207 Diesel 12V Electrical Unit 9646321780

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Part no. 7797660

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

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Part no. 8200660022

Renault Master Laguna 2 Opel Movano A Engine Alternator 14V 150A 8200660022

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Part no. 7605478-1

BMW Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478

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Part no. A2711540902

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

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Part no. 079903021D

Audi A4 B6 4.2 BBK Petrol Engine Alternator Generator 079903021D

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Part no. A0009068106

Alternator Generator Mercedes W177 W247 M260 Petrol Engine 150A A0009068106

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Part no. A2711540802

Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802

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Part no. 7555926-1

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

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Part no. 8570673

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

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Part no. 8578609-1

BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608

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Part no. 23100JD71A

Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A

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Part no. 7519618

BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618

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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX

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Part no. 4461712-1

Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712

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Part no. 04L903018A

Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A

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BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220

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

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Part no. 7515029-1

Mini Cooper One R50 R52 Petrol W10 Compact Alternator RTX 7515029

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Part no. CC1T10300BB

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

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Part no. 7542529-3

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

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Part no. A0131541002-2

Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002

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Part no. 7515030

Mini R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030

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

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Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603

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Opel Insignia A 2.0 CDTI Diesel Engine Alternator Generator 14V 100A 13502583

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Volkswagen Crafter 2E 2.0 TDI Diesel Engine Alternator 03L903023P

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

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Mercedes W447 OM622 Diesel Engine Alternator Generator A0009064022

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BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296

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

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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459

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Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE000051

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

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

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Part no. YLE500180

Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE500180

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Part no. A0009068802-3

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

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Part no. 070903024B

Volkswagen Touareg Transporter 2.5 TDI Alternator Generator 14V 180A 070903024B

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Part no. 7801124

BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124

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Part no. 03C903023G-1

Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator 110A 03C903023G

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Part no. 8570673-2

Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673

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Part no. 7786861

BMW X5 E53 3.0d M57 Alternator Starter Cable Wiring Base B+ 7786861

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Fiat Doblo Engine Alternator Generator 46774430

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Part no. 7540992-1

Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A

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Part no. A6461540102-1

Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102

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Part no. 504057813

Alternator Iveco Daily II Engine Alternator Generator 140A 504057813

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Part no. 028903028E

Alternator Volkswagen Crafter 2.0 TDI Engine Alternator 120A Bosch 028903028E

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Part no. A0009062100

Mercedes W212 Engine Alternator Generator A0009062100

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Part no. 045903023A-1

VW Polo 4 9N 1.4 TDI Seat Skoda Diesel Engine Alternator Generator 045903023A

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Part no. 079903015F

Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F

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Part no. 7615484-2

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

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Part no. 06D903016AB

Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB

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Part no. 7603779

Alternator BMW F10 F13 F07GT F02 Petrol N63 Alternator valeo 230A 7603779

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Part no. 7797661-1

Alternator BMW E53 E83 M57N2 Generator Diesel Engine Power 150A 7797661

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Part no. A2711540802-1

Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802

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Part no. 03G903016N

Audi A6 C6 2.0 TDI Alternator Generator 180A 14V Diesel Engine Unit 03G903016N

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Part no. 7550967

BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967

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Part no. CC1T-10300-CD

Ford Transit Mk8 2.2 TDCI Alternator Generator CC1T-10300-CD

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Part no. 8579420

BMW F07 F10 F11 Alternator Generator 220A Valeo N47N Diesel Engine 8507625

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Part no. 8645325-2

BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325

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Part no. 7808074

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

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Part no. 03L903017B

Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B

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Part no. 7606628

BMW F10 M5 F06 F12 F13 M6 S63N Engine Alternator Generator 14V 210A 7606628

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Part no. 7519721-1

BMW 3 5 7 X3 E46 E60 E61 E65 E83 M54 Alternator Generator 150A TG15C018

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Part no. 9810525380

Peugeot Partner B9 Alternator Generator VALEO 9810525380

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Part no. 7550997-2

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

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Part no. 04E903023K

Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator Valeo 04E903023K

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Part no. 7550469-1

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

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Part no. A0131540602

Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N

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Part no. 05E903018G

Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G

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Part no. 7543083-2

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

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Showing 199-297 of 455 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 .

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