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. 059903018K

Audi Q7 4L Quattro Diesel 3.0 TDI ALternator Generator 180A Bosch 059903018K

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Part no. A2721540102

Alternator Mercedes W211 Alternator Generator Bosch 14V 180A A2721540102

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Part no. 04C903023T

Audi A1 8X 1.4 TFSI CZCA Alternator Generator 04C903023T

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Part no. A2711540802-1

Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802

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Part no. 7550967

BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967

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Part no. 7848603-1

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

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Part no. 03F903023D

Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D

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Part no. 2T1U-10300-CG

Ford Transit Connect MK1 Focus MK1 Engine Alternator Generator 2T1U-10300-CG

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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. 9678048880

Alternator Generator Peugeot 208 308 Partner Diesel 12V 9678048880

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Part no. 7519620

BMW 3 Z4 E46 E85 M54 325i 2.2i 2.5i 3.0i Alternator Generator 120A Bosch

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Part no. 8627124

BMW X1 F48 Mini F55 F56 B37 B47 Engine Alternator Generator Denso 150A 8627124

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Part no. A0009061903-1

Mercedes W176 W242 W246 Alternator Generator Bosch A180 Petrol A0009061903

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Part no. 7552815-1

Alternator BMW Z4 E89 23i 30i N52N Alternator Denso 170A 14V 7552815

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Part no. 8515754-1

BMW F10 F11 F12 F13 N57N Diesel Alternator 210A Valeo 8515754

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Part no. 13502583

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

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Part no. A0141541502

Alternator Generator Mercedes W204 W212 M271 Engine Lucas 150A 14V LRA03506

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Part no. 05L903026B

Audi Q2 GA 3.0 TDI DTTC Diesel Engine Alternator Generator 05L903026B

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Part no. 7540993

Alternator BMW X5 E53 Engine N62 Alternator Generator 14V 100/180A Valeo 7540993

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Part no. 070903024B

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

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Part no. 8614276

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

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Part no. 31100-PWA-004

Alternator Generator Honda Civic Jazz Petrol Engine Mitsubishi 31100-PWA-004

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Part no. A0009060903

Alternator Mercedes W166 W213 C292 OM651 Generator 14V 250A A0009060903

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Part no. 06F903023P

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

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Part no. 7616120

Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120

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Part no. 2650917

Ford Transit Connect Engine Alternator Generator Unit Diesel KK3T-10300-BB

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Part no. 7541694

BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH

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Part no. 7550319-1

MINI Cooper One R50 R52 Petrol W10 Alternator Generator 110A 7550997 7550319

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Part no. 074903025K

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

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Part no. 7838656

BMW 3 Series E90 E91 E92 M3 Engine Alternator Generator Valeo 180A 7838656

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Part no. CC1T-10300-CC

Alternator Ford Transit MK7 Diesel 2.2 Tdci Bosch CC1T-10300-CC

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Part no. A0009069905

Mercedes W205 W213 Engine Alternator Generator M264 Petrol A0009067703

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Part no. A0121541302

Alternator Generator Mercedes W211 W220 R230 M112 Bosch 150A A0121541302

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Part no. 5705AS-1

Peugeot Expert Citroen Berlingo Diesel Engine Alternator Generator 5705AS

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Part no. 7605478-1

BMW Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478

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Part no. 7797661-3

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

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Part no. A0009063822

Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822

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Part no. 8645325-1

BMW F20 F30 F32 F33 F34 B38 B48 Petrol Engine Alternator Generator 180A 8645325

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Part no. 7521383

BMW 3 E46 N42 316i 318i Petrol Engine Alternator Generator 110A Valeo 7521382

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Part no. 6G9N10300UD

Ford Focus Mondeo Diesel Engine Alternator Generator Engine Unit 6G9N-10300-UD

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Part no. 231008633R

Renault Trafic Vauxhall Vivaro 1.6 dCi Diesel Alternator Generator 231008633R

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Part no. 04B903023B

Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D

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Part no. 06F903023D

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

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Part no. 7802928

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

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Part no. 4868429AD

Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD

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Part no. A2711541402-1

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

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Part no. 7519618

BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618

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Part no. A0009068802-3

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

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Part no. A0131541002

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

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Part no. A6461540002

Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002

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Part no. A0009068802-1

Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802

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Part no. A0001502550

Mercedes ML W163 Alternator Generator A0001502550

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Part no. 079903021JX

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

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Part no. 7797661

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

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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. 7640132-3

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

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Part no. 8626086-1

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

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Part no. 7533270

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

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Part no. 045903143E

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

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Part no. A0009063322-1

Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322

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Part no. 2247391

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

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Part no. A2711540902

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

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Part no. 7533837

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

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Part no. 7649390

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

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Part no. 7521383-1

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

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Part no. 231001423R

Renault Trafic Vauxhall Vivaro 2.0 DCI Diesel Alternator Generator 231001423R

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Part no. 03D903025J-1

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

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Part no. A0009062609

Mercedes C118 W177 W247 Three Phase Alternator A0009062609

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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. A0131541002-2

Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002

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Part no. 7552815

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

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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. 6C1T-10300-CD

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

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Part no. 7802471-1

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

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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. 03L903017B

Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B

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Part no. 8200690199

Renault Trafic II Alternator Generator 120A SG12B050 8200690199

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Part no. 03C903023S

Audi A1 8X 1.4 TSI CAXA Alternator 03C903023S

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Part no. 7834160

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

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Part no. 7604782-1

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

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Part no. 7542529-2

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

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Part no. A0131545902

Alternator Generator Mercedes W211 S211 OM646 Diesel Engine 200A A0131545902

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Part no. A0009062100

Mercedes W212 Engine Alternator Generator A0009062100

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Part no. A6519065200

Mercedes W910 OM651 Engine Alternator Generator Bosch A6519065200

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Part no. A0111546402

Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402

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Part no. A0121549802-1

Mercedes W211 Alternator Generator A0121549802

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Part no. A0111549302

Mercedes-Benz C-Class W203 M111 C 180 Bosch Alternator Generator 0124515056

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Part no. 8626086

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

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Part no. 7521137-1

BMW X3 E83 E46 E60 E61 E65 M54 Alternator Generator 150A 7521137

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Part no. 7789980-1

BMW E46 Alternator Generator Diesel Engine M47N M57N 150A Lucas LRA02891

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Part no. A4159064900

Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R

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Part no. A0131540602

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

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Part no. A6461541102-2

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

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Part no. A2711540902-1

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

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Part no. A6461540002-1

Alternator Mercedes Sprinter W906 Diesel OM646 Engine Alternator A6461540002

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Part no. 7558220

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

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Part no. 04C903021A

Volkswagen Golf Sportsvan 1.5 TSI Alternator Valeo 14V 140A 04C903021A

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Part no. A0131549002

Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002

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Part no. 820072829

Nissan Qashqai Renault Megane II Dacia Duster dCi Engine Alternator 820072829

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Showing 298-396 of 469 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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