OEM Alternator Voltage Regulator M642, aftermarket replacement, starter parts, alternator parts, automotive electrical
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OEM Valeo Voltage Regulator M642

Valeo
M642OEM
In stock
Voltage Regulator
$80.00

OEM Valeo Voltage Regulator M642

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

Specifications

  • MFR:VALEO
  • FEATURE 1:100% New OEM
  • FEATURE 2:5 Second LRC
  • FEATURE 3:Stator or Lamp Activated
  • FEATURE 4:Soft Start
  • FEATURE 5:Under Voltage Lamp
  • FEATURE 6:Active lamp - with output
  • SPECS FOR:Valeo IR/IF Alternators
  • SPECS:12 Volt, B-Circuit, High Side Drive Regulator, 14.58 Vset

USED ON

  • Alfa Romeo - Europe (2008-2015) ** Chrysler - Europe (2011-2011) ** Fiat - Europe (2003-2015) ** Fiat LCV - Europe (2003-2010) ** Ford - Europe (2008-2010) ** Lancia - Europe (2003-2015) ** Opel - Europe (2003-2015) ** Opel LCV - Europe (1997-2010) ** Suzuki - Europe (2003-2015) ** Vauxhall - Europe (1998-2015)

Replaces

  • Fiat 77365416, Opel 93178274, Suzuki 32500T85E00000, Valeo 2621402, 593890, 593947

LESTER NUMBERS

  • 22795, 23325, 23792, 23797, 23922, 23924

UNIT NUMBERS

  • Alfa Romeo 46823547, 51718499, 51854915, 55185076; Fiat 46823546, 468235460, 46823547, 46835095, 51718499, 51727335, 51784846; Ford 1571296, 9S5110346CB; GM 13117279, 13283344BW, 704042419; Marelli 063358062010, 063377493010, 063377494010; Opel 13 117 279 YQ, 13 283 344 BW, 13117278; Renault 704114923, 704114923, 704114923, 704114923; Suzuki 31400-85E00-000; Valeo TG8S010, TG8S012, TG8S013, TG8S016, TG9S010, TG9S011, TG9S015, TG9S016, TG9S021, TG9S022, TG9S027, TG9S039, TG9S063

Vehicle Application

Alfa Romeo - Europe Car
Mito 1248cc 199A3.000, 1.3 JTDM 2008-2015
Mito 1248cc 199B1.000, 1.3 JTDM 2009-2015
Mito 1.3 JTDM, 66kW, 90HP, 1248cc 2008-2015
MITO (955_) Eng.199 A3.000 1.3 MultiJet 66kW 199 A3.000 2009-2010

Fiat Car
Strada L4 1.8L 1796cc 110cid 2007-2008

Fiat - Europe Car
500 (312_) Eng.169 A1.000 1.3 D Multijet 55kW 169 A1.000 2007
500 C (312_) Eng.169 A1.000 1.3 D Multijet 55kW 169 A1.000 2009
500 C 1.3 D Multijet, 55kW, 75HP, 1248cc 2009-2015
Doblo 1300 2004-2010
DOBLO Box Body / Estate (263_) Eng.199 A3.000, 263 A2.000 1.3 D Multijet 66kW 199 A3.000, 263 A2.000 2010
DOBLO Cargo (223_) Eng.188 A8.000, 188 A9.000 1.3 JTD 16V 51kW 188 A8.000, 188 A9.000 2004-2006
DOBLO Cargo (223_) Eng.199 A2.000 1.3 D Multijet 55kW 199 A2.000 2005-2010
DOBLO MPV (119_, 223_) Eng.199 A2.000 1.3 JTD 55kW 199 A2.000 2005
DOBLO MPV (119_, 223_) Eng.223 A9.000 1.3 D Multijet 62kW 223 A9.000 2005
DOBLO Platform/Chassis (263_) Eng.199 A3.000, 263 A2.000 1.3 D Multijet 66kW 199 A3.000, 263 A2.000 2010
FIORINO Box Body / Estate (225_) Eng.199 A9.000 1.3 D Multijet 55kW 199 A9.000 2007-2014
Florino 1.3 D Multijet, 55kW, 75HP, 1248cc 2007-2015
Grande Punto 1248cc 199A2.000, 1.3 JTD Multijet 2005-2015
Grande Punto 1248cc 199A3.000, 1.3 JTD Multijet 2005-2015
Grande Punto 1.3 D Multijet, 55kW, 75HP, 1248cc 2005-2015
Grande Punto 1.3 D Multijet, 66kW, 90HP, 1248cc 2005-2015
GRANDE PUNTO (199_) Eng.199 A2.000 1.3 D Multijet 55kW 199 A2.000 2005
GRANDE PUNTO (199_) Eng.199 A3.000 1.3 D Multijet 66kW 199 A3.000 2005
Idea 1248cc 188A9.000, 1.3 JTD Multijet 2004-2015
Idea 1248cc 199A3.000, 1.3 JTD Multijet 2005-2015
Idea 1.3 D Multijet, 66kW, 90HP, 1248cc 2005-2015
Idea 1.3 JTD, 51kW, 70HP, 1248cc 2004-2015
Idea 1300 2004-2010
IDEA (350_) Eng.188 A9.000 1.3 D Multijet 51kW 188 A9.000 2004
IDEA (350_) Eng.199 A3.000 1.3 D Multijet 66kW 199 A3.000 2005
Linea 1248cc 199A3.000, 1.3 JTD Multijet 2007-2015
Linea 1.3 D Multijet, 66kW, 90HP, 1248cc 2007-2015
Panda II 1248cc 169A1.000, 1.3 JTD Multijet 2006-2015
Panda II 1248cc 188A9.000, 1.3 JTD Multijet 2004-2015
Panda 1.3 D Multijet, 51kW, 70HP, 1248cc 2004-2015
Panda 1.3 D Multijet, 55kW, 75HP, 1248cc 2006-2015
Panda 1300 2004-2010
PANDA (169_) Eng.188 A8.000, 188 A9.000 1.3 D Multijet 51kW 188 A8.000, 188 A9.000 2003
Punto 1.3 D Multijet, 55kW, 75HP, 1248cc 2005-2015
Punto 1.3 D Multijet, 66kW, 90HP, 1248cc 2005-2015
Punto 1.3 JTD 16V, 51kW, 70HP, 1248cc 2003-2015
Punto 1.3 JTD, 51kW, 69HP, 1248cc 2003-2005
PUNTO (188_) Eng.188 A9.000 1.3 JTD 16V 51kW 188 A9.000 2003-2012
Punto Evo 1248cc 199A2.000, 1.3 D Multijet 2009-2012
Punto Evo 1248cc 199A9.000, 1.3 D Multijet 2009-2012
Punto Evo 1248cc 199B1.000, 1.3 JTD Multijet 2009-2012
Punto Evo 1248cc 199B2.000, 1.3 JTD Multijet 2009-2012
Punto Evo 1.3 D Multijet, 51kW, 69HP, 1248cc 2008-2012
Punto Evo 1.3 D Multijet, 55kW, 75HP, 1248cc 2009-2012
PUNTO EVO (199_) Eng.199 A2.000, 199 A9.000 1.3 D Multijet 55kW 199 A2.000, 199 A9.000 2009-2012
PUNTO EVO (199_) Eng.199 B4.000, 223 A9.000 1.3 D Multijet 62kW 199 B4.000, 223 A9.000 2009-2012
Punto Grande 1300 2006-2010
Punto III 1248cc 188A9.000, 1.3 JTD Multijet 16V 2003-2005
Punto III 1300 2003-2006
PUNTO Van (188_) Eng.188 A9.000 1.3 D Multijet 55kW 188 A9.000 2005-2009
PUNTO Van (188_) Eng.188 A9.000 1.3 JTD 51kW 188 A9.000 2003-2005
PUNTO Van (199_) Eng.199 B1.000 1.3 D Multijet 70kW 199 B1.000 2011-2012
Qubo 1248cc 199A2.000, 1.3 JTD Multijet 2008-2015
QUBO (225_) Eng.199 A9.000 1.3 D Multijet 55kW 199 A9.000 2008-2014
Strada 1248cc 223A9.000, 1.3 D Multijet 2006-2015
Strada 1.3 D Multijet, 62kW, 85HP, 1248cc 2006-2015
Strada 1.3 D Multijet, 75kW, 95HP, 1248cc 2010-2015
Tracker 1248cc 169A1.000, 1.3 D Multijet 2007-2015
Tracker 1.3 D Multijet, 55kW, 75HP, 1248cc 2007-2015
Tracker 1300, MJTD 2008-2012

Fiat - Europe Van
Doblo I 1248cc 188A9.000, 1.3 JTD 2004-2005
Doblo I 1248cc 223A9.000, 1.3 JTD 2006-2010
Doblo II 1248cc A2.000, 1.3 JTD 2010-2015
Doblo II 1248cc A3.000, 1.3 JTD 2010-2015
Doblo Cargo 1.3 D Multijet, 55kW, 75HP, 1248cc 2005-2010
Doblo Cargo 1.3 JTD 16V Multijet, 62kW, 84HP, 1248cc 2006-2015
Doblo Cargo 1.3 JTD 16V, 51kW, 70HP, 1248cc 2004-2006
Fiorino 1248cc 199A2.000, 1.3 D Multijet 2008-2015

Lancia - Europe Car
Musa 1248cc 188A9.000, 1.3 D Multijet 2004-2015
Musa 1248cc 199A3.000, 1.3 D Multijet 2006-2015
Musa 1.3 D Multijet, 51kW, 70HP, 1248cc 2004-2015
Musa 1.3 D Multijet, 66kW, 90HP, 1248cc 2006-2015
Ypsilon 1248cc 188A9.000, 1.3 JTD 2003-2015
Ypsilon 1248cc 199A2.000, 1.3 D Multijet 2006-2015
Ypsilon 1248cc 199A3.000, 1.3 D Multijet 2006-2015

Opel - Europe Car
Agila A 1248cc Z13DT, 1.3 CDTI 2003-2008
Astra H 1248cc Z13DTH, 1.3 CDTI 2005-2010
Astra H 1300, 16V, Z13DTH 2005-2010
Combo C 1248cc Z13DT, 1.3 CDTI 16V 2004-2015
Combo C 1248cc Z13DTJ, 1.3 CDTI 16V 2004-2015
Corsa C 1248cc Z13DT, 1.3 CDTI 2003-2006
Corsa C 1300, 16V 2003-2005
Corsa D 1300, 16V, A,Z13DTJ,H 2006-2009
Meriva A 1248cc Z13DT, 1.3 CDTI 2003-2010
Meriva A 1248cc Z13DTJ, 1.3 CDTI 2003-2010
Meriva A 1300, 16V, Y,Z13DT,DTJ 2005-2010
Tigra B 1248cc Z13DT, 1.3 CDTI 2005-2015
Tigra 1300, 16V, Z13DT 2004-2010

Suzuki - Europe Car
Ignis II 1248cc Z13DT, 1.3 DDiS 2003-2015
Ignis II 1.3 DDiS, 51kW, 70HP, 1248cc 2003-2015
Splash 1248cc Z13DTJ, 1.3 DDiS 2008-2015
Splash 1.3 CDTI, 55kW, 75HP, 1248cc 2008-2015
Swift III 1248cc Z13DT, 1.3 DDiS 2005-2015
Swift III 1.3 DDiS, 51kW, 69HP, 1248cc 2005-2015
Swift III 1.3 DDiS, 55kW, 75HP, 1248cc 2005-2015
Swift 1300, Z13DT 2006-2010
Wagon R+ 1248cc Z13DT, 1.3 DDiS 2004-2015
Wagon R+ 1.3 DDiS, 51kW, 70HP, 1248cc 2003-2015

Vauxhall - Europe Car
Agila A 1248cc Z13DT, 1.3 CDTI 2003-2008
Astra H 1248cc Z13DTH, 1.3 CDTI 2005-2015
Astra Mk IV 1.2 16V, 48kW, 65HP, 1199cc 1998-2000
Astra Mk IV 1.2 16V, 55kW, 75HP, 1199cc 2000-2005
Combo C 1248cc Z13DT, 1.3 CDTI 2005-2015
Combo C 1248cc Z13DTJ, 1.3 CDTI 2005-2015
Combo Mk II 1.3 CDTI, 55kW, 75HP, 1248cc 2005-2011
Corsa C 1248cc Z13DT, 1.3 CDTI 2003-2015
Meriva A 1248cc Z13DTJ, 1.3 CDTI 2006-2010
Tigra II 1248cc Z13DT, 1.3 CDTI 2004-2015

Chrysler - Europe Car
YPSILON Eng.199 B1.000 1.3 Multijet 70kW 199 B1.000 2011

Ford - Europe Car
KA (RU8) Eng.FD4 1.3 TDCi 55kW FD4 2008-2010

Fiat LCV - Europe Van
Doblo Cargo 1300 2004-2010
Punto 1300 2003-2010

Opel LCV - Europe Van
Campo 3100 1997-2003
Corsa/Combo II 1300, 16V 2004-2010

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.

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:

  • Bearings
  • Brushes
  • Brush Holder
  • Slip Rings
  • Rectifier
  • Diodes
  • Rotor
  • Clutch Pulley
  • Insulators
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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