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  • OEM Valeo Voltage Regulator M620
OEM Alternator Voltage Regulator M620, aftermarket replacement, starter parts, alternator parts, automotive electrical
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OEM Valeo Voltage Regulator M620

Valeo
M620OEM
In stock
Voltage Regulator
$70.00
OEM Valeo Voltage Regulator M620

Shipping

In-stock orders ship out same day or next business day via USPS.

Pre Order

Pre-orders ship out in the order received within 7–21 business days.

Customer Support

Need help finding a part? Contact Support@RCAutoElectric.com

Description

Specifications

  • MFR:VALEO
  • FEATURE 1:100% New 
  • FEATURE 2:LIN (COM) Terminal Function
  • FEATURE 3:COM ID Code: 89
  • FEATURE 4:Stator Activated
  • FEATURE 5:Field Rating 5 Amps
  • FEATURE 6:Voltage Set point and Regulation Mode is controlled by Vehicle
  • SPECS FOR:Valeo IR/IF Alternators
  • SPECS:12 Volt, B-Circuit, High Side Drive Regulator, LIN Terminals, 14.3 Vset

USED ON

  • Audi (2012-2017)

Replaces

  • Audi, Volkswagen 059 903 803 N, Valeo 599237, 599283

LESTER NUMBERS

  • 11704, 11706, 11739, 11800, 20660, 21377, 21542, 23378

UNIT NUMBERS

  • Audi, Volkswagen 03L 903 017B, 03L 903 017BX, 03L-903-017-B, 03L-903-017-BX, 04L 903 017A, 04L-903-017-A, 059 903 018 Q, 059 903 018 QX, 059-903-018-Q, 059-903-018-QX, 06E-903-018-L, 06E-903-018-LX, 06E-903-018L, 06E-903-018LX, 06H-903-017-K, 06H-903-017-KX, 06H-903-017K, 06H-903-017KX, 06H-903-018-M, 06H-903-018-MX, 06H-903-018M, 06H-903-018MX; Lucas LRA03392, LRA04154; Mercedes-Benz 000 906 09 03, 000-906-03-04, 000-906-83-01, A 000 906 09 03, A-000-906-03-04, A000-906-83-01; Valeo 439843, A620429A, CG25S020, CG25S026, CG25S028, CG25S035, CG25S036, FG20S015, FG20S016, FG20S017, FG20S018, FG20S019, FG20S022, FGN20S016, FGN20S018, FGN20S019, FGN20S022

Vehicle Application

Audi Car
A4 L4 2.0L 1984cc 121cid 2013-2016
A4 allroad L4 2.0L 1984cc 121cid 2013-2016
A4 Quattro L4 2.0L 1984cc 121cid 2013-2016
A5 L4 2.0L 1984cc 121cid 2013-2014
A5 Quattro L4 2.0L 1984cc 121cid 2013-2017
A6 L4 2.0L 1984cc 121cid 2012-2015
A6 Quattro L4 2.0L 1984cc 121cid 2013-2015

Audi Truck
Q5 L4 2.0L 1984cc 121cid 2013-2017
Q5 V6 3.0L 2967cc 181cid 2014-2016
Q5 V6 3.0L 2995cc 2017
SQ5 V6 3.0L 2995cc 2017

Audi - China Car
A4 FV7183BAC 30TFSI CVT 2008-2015
A4 FV7183BAM 30TFSI 2008-2015
A4 FV7203BBC 35TFSI CVT 2008-2015
A4 FV7203BCD 40TFSI DSG 2008-2015
A6 FV7201BAC 2.0 2008-2015
A6 FV7201BAM 2.0 2008-2015
Q5 FV6461ATG 2.0T DSG 2010-2015

Audi - Europe Car
A4 88kW, 120HP 1.8 TFSI 2008-2016
A4 125kW, 170HP 1.8 TFSI 2011-2016
A4 132kW, 180HP 2.0 TFSI 2008-2016
A4 155kW, 211HP 2.0 TFSI 2008-2016
A4 162kW, 220HP 2.0 TFSI 2013-2016
A4 165kW, 224HP 2.0 TFSI 2013-2016
A4 110kW, 150HP 2.0 TDI 2013-2016
A4 130kW, 177HP 2.0 TDI 2011-2016
A4 140kW, 190HP 2.0 TDI 2013-2016
A4 Allroad Quattro 155kW, 211HP 2.0 TFSI 2009-2016
A4 Allroad Quattro 162kW, 220HP 2.0 TFSI 2013-2016
A4 Allroad Quattro 165kW, 224HP 2.0 TFSI 2013-2016
A4 Allroad Quattro 110kW, 150HP 2.0 TDI 2013-2016
A4 Allroad Quattro 130kW, 177HP 2.0 TDI 2011-2016
A4 Allroad Quattro 140kW, 190HP 2.0 TDI 2013-2016
A4 Quattro 125kW, 170HP 1.8 TFSI 2011-2016
A4 Quattro 132kW, 180HP 2.0 TFSI 2009-2016
A4 Quattro 155kW, 211HP 2.0 TFSI 2008-2016
A4 Quattro 162kW, 220HP 2.0 TFSI 2013-2016
A4 Quattro 165kW, 224HP 2.0 TFSI 2013-2016
A4 Quattro 110kW, 150HP 2.0 TDI 2013-2016
A4 Quattro 130kW, 177HP 2.0 TDI 2011-2016
A4 Quattro 140kW, 190HP 2.0 TDI 2013-2016
A5 106kW, 144HP 1.8 TFS 2014-2016
A5 118kW, 160HP 1.8 TFSI 2009-2016
A5 125kW, 170HP 1.8 TFSI 2007-2016
A5 130kW, 177HP 1.8 TFSI 2015-2016
A5 132kW, 180HP 2.0 TFSI 2008-2016
A5 155kW, 211HP 2.0 TFSI 2008-2016
A5 162kW, 220HP 2.0 TFSI 2013-2016
A5 165kW, 224HP 2.0 TFSI 2013-2016
A5 169kW, 230HP 2.0 TFSI 2015-2016
A5 105kW, 143HP 2.0 TDI 2009-2016
A5 110kW, 136HP 2.0 TDI 2009-2016
A5 110kW, 150HP 2.0 TDI 2014-2016
A5 120kW, 163HP 2.0 TDI 2008-2016
A5 130kW, 177HP 2.0 TDI 2011-2016
A5 140kW, 190HP 2.0 TDI 2013-2016
A5 Quattro 155kW, 211HP 2.0 TFSI 2008-2016
A5 Quattro 162kW, 220HP 2.0 TFSI 2012-2016
A5 Quattro 165kW, 224HP 2.0 TFSI 2013-2016
A5 Quattro 169kW, 230HP 2.0 TFSI 2015-2016
A5 Quattro 130kW, 177HP 2.0 TDI 2011-2016
A5 Quattro 140kW, 190HP 2.0 TDI 2013-2016
A6 132kW, 180HP 2.0 TFSI 2011-2016
A6 155kW, 211HP 2.0 TFSI 2011-2013
A6 162kW, 220HP 2.0 TFSI 2013-2016
A6 100kW, 136HP 2.0 TDI 2012-2016
A6 120kW, 163HP 2.0 TDI 2011-2016
A6 130kW, 177HP 2.0 TDI 2011-2016
A6 Quattro 155kW, 211HP 2.0 TFSI 2012-2013
A6 Quattro 162kW, 220HP 2.0 TFSI 2013-2016
Q5 100kW, 136HP 2.0 TDI 2010-2016
Q5 105kW, 143HP 2.0 TDI 2010-2016
Q5 110kW, 150HP 2.0 TDI 2013-2016
Q5 140kW, 190HP 2.0 TDI 2015-2016
Q5 Quattro 132kW, 180HP 2.0 TFSI 2009-2016
Q5 Quattro 162kW, 220HP 2.0 TFSI 2013-2016
Q5 Quattro 165kW, 224HP 2.0 TFSI 2012-2016
Q5 Quattro 169kW, 230HP 2.0 TFSI 2015-2016
Q5 Quattro 100kW, 136HP 2.0 TDI 2009-2016
Q5 Quattro 105kW, 143HP 2.0 TDI 2009-2016
Q5 Quattro 110kW, 150HP 2.0 TDI 2013-2016
Q5 Quattro 120kW, 163HP 2.0 TDI 2008-2016
Q5 Quattro 130kW, 177HP 2.0 TDI 2012-2016
Q5 Quattro 140kW, 190HP 2.0 TDI 2013

Mercedes - Europe Car
GL350 CDI OM642.826, 3.0 Dsl., 190kW, 258HP, 2987cc 2012-2016
Maybach S500 M278.929, 4.7L, 335kW, 455HP, 4663cc 2014-2016
S320 M276.824, 3.0L, 200kW, 272HP, 2996cc 2014-2016
S400 M276.824, 3.0L, 245kW, 333HP, 2996cc 2014-2016
S500 M278.929, 4.7L, 335kW, 455HP, 4663cc 2013-2016

Mercedes - Europe Truck
ML350 BlueTec OM642.826, 3.0 Dsl., 190kW, 258HP, 2987cc 2011-2016

Mercedes-Benz Car
Maybach S550 V8 4.7L 4663cc 285cid 2017
S450 V6 3.0L 2996cc 2018-2020
S550 V8 4.7L 4663cc 285cid 2014-2017

Mercedes-Benz Truck
GL350 V6 3.0L 2987cc 2014-2016
GLE350d V6 3.0L 2987cc 2016
GLS350d V6 3.0L 2987cc 2017
ML350 V6 3.0L 2987cc 2015

Features & Benefits

  • Genuine OEM replacement part

  • Manufactured to original factory specifications

  • Regulates alternator output voltage

  • Helps maintain proper battery charging

  • Supports stable charging system performance

  • Original fit, function, and electrical characteristics

  • Ideal for alternator rebuilding and repair

  • Engineered for long-term reliability

 

 

What Does a Voltage Regulator Do?

The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system.

A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.

 

 

Common Signs Replacement Is Needed

Replace the voltage regulator if you notice:

  • Battery overcharging

  • Battery not charging

  • Low charging voltage

  • High charging voltage

  • Battery warning light illuminated

  • Intermittent charging problems

  • Headlights that brighten or dim with engine speed

  • Charging system failure during testing

  • Voltage regulator failure discovered during alternator rebuilding

 

 

Installation Recommendations

Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage.

Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.

 

 

While You're Rebuilding

Inspect other common wear components to help maximize charging system reliability:

 

 

Why Buy From RC Auto Electric?

RC Auto Electric specializes in genuine OEM and premium aftermarket alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.

 

 

Disclaimer

Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original OEM part number, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.

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Frequently Asked Questions

How do I confirm compatibility? +
Compare part numbers, dimensions and photos with the original component.
Is this OEM or aftermarket? +
This listing is for an aftermarket replacement part.
What should I verify before ordering? +
Check all fitment and application details before purchase.
Is professional installation recommended? +
Professional installation is recommended.
Where can I find related parts? +
Browse related starter and alternator categories on RCAutoElectric.

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