CAR Alternator regulator

Alternator voltage regulator: common defects and their signs

  1. Oxidation or closing of contacts
    • Lighting units often blow-out.
    • The battery doesn’t charge, though it is serviceable.
    • There are some troubles at engine start.
    • Car lighting elements work correctly at high revs, and get dimmer at their lowering.
  2. Wiring breakage. A sign ofthis defect is the absence of battery charge.

How to repair or replace an alternator voltage regulator?

The alternator regulator is usually not repaired. In case of wear-out or significant damages the part is to be replaced. This is recommended to be done at a service station because the process is rather laborious and requires demounting of the alternator. To replace the relay one should stop voltage supply to the battery, disconnect the wire block from the socket, demount the alternator, and remove its rear cover. Then locate the regulator, disconnect contact wires from it and demount the broken component, after that install a new one into its place, then assemble the unit in reverse order.

Alternator regulator Information

Alternator regulator: Bestsellers

-21%
HC-Cargo Alternator Regulator
Article № : 134475
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£ 12,09**
£ 9,55
incl. 20% VAT, Shipping
  • Voltage [V]: 14
  • Charging Voltage [V]: 14,7
  • Condition: New

OEM-Number

03 79 0 302 3G

03 09 0 302 3E

05 89 0 301 6E

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-21%
AS-PL Alternator Regulator
Article № : ARE0007
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£ 7,17**
£ 5,66
incl. 20% VAT, Shipping
  • Voltage [V]: 12
  • Condition: New
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-21%
AS-PL Alternator Regulator
Article № : ARE0012
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£ 18,10**
£ 14,30
incl. 20% VAT, Shipping
  • Voltage [V]: 12
  • Condition: New

OEM-Number

93 17 6 380

99 49 5 75

91 17 9 42

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-21%
AS-PL Alternator Regulator
Article № : ARE0008
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£ 17,22**
£ 13,60
incl. 20% VAT, Shipping
  • Voltage [V]: 12
  • Condition: New

OEM-Number

03 89 0 380 3E

03 89 0 380 3EX

03 89 0 380 3

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-21%
BOSCH Alternator Regulator
Article № : F 00M 144 197
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£ 34,02**
£ 26,88
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  • Condition: New

OEM-Number

07 K9 0 380 3

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-21%
BOSCH Alternator Regulator
Article № : F 00M 144 136
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£ 33,90**
£ 26,78
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  • Condition: New
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-21%
BERU Alternator Regulator
Article № : GER024
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£ 23,35**
£ 18,45
incl. 20% VAT, Shipping
  • Voltage [V]: 14,4
  • Manufacturer Restriction: BOSCH
  • Condition: New

OEM-Number

12 32 1 244 409

12 04 2 30

24 15 3 4

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-21%
HITACHI Alternator Regulator
Article № : 130647
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£ 42,76**
£ 33,78
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  • Manufacturer Restriction: VALEO
  • Alternator Charge Current [A]: 120, 150, 180
  • Supplementary Info: Hueco
  • Condition: New
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