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The top-selling spare parts in the Alternator category. Browse our huge wide range of high-quality car parts from top brands in the category Alternator and others.

-35%
RIDEX 4G0089 Alternator
Parts Details
  • Alternator Charge Current [A]: 70
  • Pulleys: with multi-belt pulley
  • Voltage [V]: 12, 14
  • Number of grooves: 4
  • RIDEX: Alternator
  • Item number: 4G0089
  • Our price: 100,09 €
  • Condition: New
Details
RIDEX 4G0089 Alternator
Article number: 4G0089
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

155,97 €
100,09 €
(Price per item)
price incl. 19% VAT, excl. delivery costs
-35%
RIDEX 4G0003 Alternator
Parts Details
  • Alternator Charge Current [A]: 150
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 12
  • Belt Pulley Ø [mm]: 54
  • Number of ribs: 6
  • Length 3 [mm]: 45,5
  • Length [mm]: 42,5, 21
  • RIDEX: Alternator
  • Item number: 4G0003
  • Our price: 112,96 €
  • Condition: New
Details
RIDEX 4G0003 Alternator
Article number: 4G0003
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

173,97 €
112,96 €
(Price per item)
price incl. 19% VAT, excl. delivery costs
-19%
RIDEX 4G0006 Alternator
Parts Details
  • Alternator Charge Current [A]: 120
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 12
  • Length 3 [mm]: 61,50
  • Length [mm]: 40,00, 14,00
  • RIDEX: Alternator
  • Item number: 4G0006
  • Our price: 116,35 €
  • Condition: New
Details
RIDEX 4G0006 Alternator
Article number: 4G0006
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

144,97 €
116,35 €
price incl. 19% VAT, excl. delivery costs
-38%
RIDEX 4G0160 Alternator
Parts Details
  • Alternator Charge Current [A]: 150
  • Voltage [V]: 12
  • Belt Pulley Ø [mm]: 54
  • Number of ribs: 6
  • Plug Type ID: B2+(M8),L,DFM
  • Rotation Direction: Clockwise rotation
  • RIDEX: Alternator
  • Item number: 4G0160
  • Our price: 119,79 €
  • Condition: New
Details
RIDEX 4G0160 Alternator
Article number: 4G0160
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

193,97 €
119,79 €
price incl. 19% VAT, excl. delivery costs
-34%
RIDEX 4G0039 Generator order
Parts Details
  • Alternator Charge Current [A]: 120
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 54
  • Number of ribs: 6
  • Number of grooves: 6
  • Plug Type ID: PL57, Plug 670, PLUG138
  • Service exchange part
  • Vehicle Main Current: for vehicles with 12V main current
  • Position / Degree: L 78
  • Rotation Direction: Clockwise rotation
  • Alternator type: excl. vacuum pump
  • Fastening Type: Double Pivot Lever
  • Recommended additional repairs: V-Belt / V-Ribbed Belt
  • Clamp: B+(M8), SIG, FR, A
  • Length [mm]: 167
  • Distance from belt pulley to alternator [mm]: 42,5
  • RIDEX: Alternator
  • Item number: 4G0039
  • Our price: 123,05 €
  • Condition: New
Details
RIDEX 4G0039 Alternator
Article number: 4G0039
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

186,97 €
123,05 €
(Price per item)
price incl. 19% VAT, free delivery
-36%
RIDEX 4G0045 Generator order
Parts Details
  • Alternator Charge Current [A]: 150
  • Voltage [V]: 12
  • Belt Pulley Ø [mm]: 54
  • Number of ribs: 6
  • Plug Type ID: L-DFM (Plug 141)
  • Vehicle Main Current: for vehicles with 12V main current
  • Clamp: M8
  • Net weight [kg]: 6,8
  • RIDEX: Alternator
  • Item number: 4G0045
  • Our price: 127,67 €
  • Condition: New
Details
RIDEX 4G0045 Alternator
Article number: 4G0045
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

201,97 €
127,67 €
price incl. 19% VAT, free delivery
-35%
RIDEX 4G0047 Generator order
Parts Details
  • Alternator Charge Current [A]: 150
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 54,3
  • Number of ribs: 6
  • Number of grooves: 6
  • Plug Type ID: PL324
  • Rotation Direction: Clockwise rotation
  • Fastening Type: Double Pivot Lever
  • Clamp: L, B+(M8)
  • Length [mm]: 180
  • Distance from belt pulley to alternator [mm]: 42,6
  • RIDEX: Alternator
  • Item number: 4G0047
  • Our price: 147,20 €
  • Condition: New
Details
RIDEX 4G0047 Alternator
Article number: 4G0047
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

229,97 €
147,20 €
price incl. 19% VAT, free delivery
-42%
RIDEX 4G0014 Generator order
Parts Details
  • Alternator Charge Current [A]: 120
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 60,0
  • Number of ribs: 6
  • Vehicle Main Current: for vehicles with 12V main current
  • Cooling Type: Air cooled
  • Quantity Unit: Piece
  • Units / Pulleys: incl. vacuum pump
  • RIDEX: Alternator
  • Item number: 4G0014
  • Our price: 152,15 €
  • Condition: New
Details
RIDEX 4G0014 Alternator
Article number: 4G0014
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

264,97 €
152,15 €
(Price per item)
price incl. 19% VAT, free delivery
-35%
RIDEX 4G0148 Alternator price
Parts Details
  • Alternator Charge Current [A]: 150,0
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 14,0
  • Belt Pulley Ø [mm]: 48,5
  • Number of ribs: 7
  • Vehicle Main Current: for vehicles with 12V main current
  • RIDEX: Alternator
  • Item number: 4G0148
  • Our price: 155,77 €
  • Condition: New
Details
RIDEX 4G0148 Alternator
Article number: 4G0148
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

242,97 €
155,77 €
(Price per item)
price incl. 19% VAT, free delivery
-56%
DENSO DAN938 Generator price
Parts Details
  • Alternator Charge Current [A]: 100
  • Pulleys: with freewheel belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 58
  • Number of ribs: 7
  • Vehicle Main Current: for vehicles with 12V main current
  • New Part
  • Quality: OE
  • DENSO: Alternator
  • Item number: DAN938
  • Our price: 223,69 €
  • Condition: New
Details
DENSO DAN938 Alternator
Article number: DAN938
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

514,78 €
223,69 €
price incl. 19% VAT, free delivery
-70%
VALEO 437539 Alternators price
Parts Details
  • Product line: REMANUFACTURED PREMIUM
  • Alternator Charge Current [A]: 180
  • Pulleys: with belt pulley, with freewheel belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 52
  • Number of ribs: 7
  • Service exchange part
  • Rotation Direction: Clockwise rotation
  • Connector / Clamp: without connection for speed sensor
  • Fastening Type: Direct fastening
  • Weight [kg]: 8,18
  • Connector type: B+(M8)
  • VALEO: Alternator
  • Item number: 437539
  • Our price: 225,76 €
  • Condition: Remanufactured
Details
VALEO 2542969 Alternator
Article number: 437539
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

768,74 €
225,76 €
price incl. 19% VAT, free delivery
-57%
ROTOVIS Automotive Electrics 9042740 Alternator price
Parts Details
  • Alternator Charge Current [A]: 100
  • Pulleys: with multi-belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 54
  • Number of ribs: 5
  • Position / Degree 0
  • Rotation Direction: Clockwise rotation
  • Connector / Clamp: without connection for speed sensor
  • Fastening Type: Double Pivot Lever
  • ROTOVIS Automotive Electrics: Alternator
  • Item number: 9042740
  • Our price: 124,07 €
  • Condition: Remanufactured
Details
ROTOVIS Automotive Electrics 9042740 Alternator
Article number: 9042740
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

292,74 €
124,07 €
price incl. 19% VAT, free delivery
-70%
VALEO 437507 Generator price
Parts Details
  • Product line: REMANUFACTURED PREMIUM
  • Alternator Charge Current [A]: 180
  • Pulleys: with belt pulley, with V-ribbed belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 58
  • Number of ribs: 6
  • Service exchange part
  • Position / Degree: R 90
  • Rotation Direction: Clockwise rotation
  • Connector / Clamp: without connection for speed sensor
  • Fastening Type: Four-point attachment
  • Weight [kg]: 7,74
  • Connector type: B+(M8)
  • VALEO: Alternator
  • Item number: 437507
  • Our price: 197,12 €
  • Condition: Remanufactured
Details
VALEO 2542784 Alternator
Article number: 437507
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

657,74 €
197,12 €
price incl. 19% VAT, free delivery
-55%
DENSO DAN1023 Alternators price
Parts Details
  • Alternator Charge Current [A]: 120
  • Pulleys: with multi-belt pulley
  • Voltage [V]: 14
  • Belt Pulley Ø [mm]: 51
  • Number of ribs: 6
  • Vehicle Main Current: for vehicles with 12V main current
  • New Part
  • Quality: OE
  • DENSO: Alternator
  • Item number: DAN1023
  • Our price: 159,44 €
  • Condition: New
Details
DENSO DAN1023 Alternator
Article number: DAN1023
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

361,10 €
159,44 €
price incl. 19% VAT, free delivery
NIPPARTS J5118013 Alternator price
Parts Details
  • Alternator Charge Current [A]: 70
  • Voltage [V]: 12
  • Number of grooves: 4
  • NIPPARTS: Alternator
  • Item number: J5118013
  • Our price: 131,49 €
  • Condition: New
Details
NIPPARTS J5118013 Alternator
Article number: J5118013
131,49 €
price incl. 19% VAT, free delivery

Replacement of Alternator: Video repair guide

How to change alternator on MERCEDES-BENZ 190 W201 TUTORIAL | AUTODOC

How to change alternator on MERCEDES-BENZ 190 W201 TUTORIAL | AUTODOC Top brands that produce alternator: BOSCH, STARK, SACHS, SKF, VAN WEZEL, VALEO,...

Step by Step Video Tutorial for Do-it-yourself Auto Repair. Become an amateur mechanic with Autodoc.

Alternator: AUTODOC has 113928 items available

Alternator from 88 manufacturers at prices from 100€ to 226€

The bestselling products:
943308901010 9090006 9042740 J5118013 9090363 437454
From popular manufacturers:
RIDEX BOSCH HELLA VALEO BV PSH DENSO
For popular car brands:
VW MERCEDES-BENZ BMW AUDI OPEL FORD
Alternator – technical details
Belt Pulley Ø [mm] Alternator Charge Current [A] Pulleys
55 69 70 90 with multi-belt pulley with freewheel belt pulley
56 54 65 55 with belt pulley V-Ribbed Belt Pulley
60 50 35 120 without belt pulley с ремённым шкивом

 

    FAQ

    How to make an alternator to serve as long as possible?

    Follow these simple recommendations in order to avoid premature breakdown of this component:

    • Try to avoid deep puddles or reduce speed before driving through them. Moisture coming to the component can cause its breakdown.
    • When cleaning the space under the bonnet, protect the alternator and other electrical components from water with a polyethene film.
    • Clean the unit with compressed air during every scheduled engine maintenance.
    • Check and adjust tensioning of the V-ribbed belt regularly.
    • Use a torque wrench for tightening fasteners.
    • Avoid installation of additional equipment to protect the car’s electrical system from overloading.
    How to detect an alternator malfunction?

    The first step of checking the unit is to assess its condition visually. Its casing should have no cracks and dents, and its belt should not have critical abrasions and damaged parts. There should be no bent wires and sparks in places of their connection to the terminals.

    The next step is to measure the voltage on the battery terminals, for which you’ll need a multimeter. It should be 12,5–12,7 V with the engine off, and 13,8–14,5 V with the running engine and all electrical components turned off. Under the load, with the air-conditioning system, headlights, the heater, and window heating turned on, it should be no less than 13,7–14,0 V.

    If any malfunctioning takes place, remove and disassemble the component. You can estimate the wear degree of the brushes by checking their height, and of the contact rings by assessing their diameter. Measure the resistance of the rotor and stator winding and the diode bridge to define whether there is an open circuit. Compare the received data with those specified in the vehicle’s technical documentation.

    How to repair or change an alternator yourself?

    The procedure can differ for cars of various makes and models. It mostly depends on the arrangement of the components under the hood. For instance, on some cars, the unit can be accessed after opening the hood, while on others – from under a lifted car. Usually, the replacement requires the following steps

    1. Disconnect the negative terminal from the battery.
    2. Remove the components blocking access to the alternator.
    3. Remove the drive belt.
    4. Take a photo of or mark the wires to avoid mistakes during reassembling. Disconnect them.
    5. Unscrew all fasteners and remove the unit.
    6. Install a new part.
    7. Inspect the belt and pulleys visually. Replace them if necessary.
    8. Connect all contacts and install the removed components back to their places

    The alternator repair consists of replacing the contact rings and brushes, bearings, freewheel clutch and diode bridge. If you have experience in such repairs, you can do this yourself. Otherwise, seek assistance from a car workshop electrician.