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Genuine OEM & performance parts — ships to United States

Product overview

Genuine OEM Audi Voltage Regulator, part number 077903803C. This component is essential for maintaining a stable electrical voltage output from the alternator, protecting the vehicle's sensitive electronic systems from voltage fluctuations. It typically integrates with the alternator assembly. Weighing 0.113 kg, this regulator ensures consistent power delivery. Choosing a genuine OEM voltage regulator guarantees precise voltage control and long-term reliability for the charging system.

Technical details

Category
Battery & Charging
Customs (HS) code
85118000
Manufacturer
Audi
Product Type
Genuine new auto parts
Shipping size (L × W × H)
8 × 7.5 × 4 cm
Shipping weight
0.11 kg

Why buy from WW Spares?

  • ✓ Genuine OEM inventory sourced directly from factory networks
  • ✓ Fitment support from workshop-seasoned parts specialists
  • ✓ Global logistics with customs-ready documentation

Need help confirming compatibility? Talk to a specialist

Parts diagram & fitment

11 vehicles

Voltage Regulator — locate 077903803C Audi Voltage Regulator | Alternator Component in the official exploded view and explore the surrounding assembly.

Parts in this assembly48
Vehicle fitment table11

Europe (11)

VehicleYearsPos.QtyPR
Audi RS4 Cabrio qu. 08>2007-41TK7
Audi R8 08>2007-4
Audi RS4 qu. 07>2006-41TK7
Audi A4/S4 Cabrio./qu. 07>2006-4
Audi A4/S4/Av./qu. 05>2005-4
Touareg2005-20064
Phaeton (lang)2003-20064
Touareg2003-20054
Audi A4/S4 Cabrio./qu.2002-20064
Audi A4/S4/Av./qu.2001-20044
Audi A6 Allroad qu.2000-20054

Diagrams & fitment data powered by oemdiagrams.com

077903803C Audi Voltage Regulator | Alternator Component is fitted on: Audi RS4 Cabrio qu. 08> 2007-; Audi R8 08> 2007-; Audi RS4 qu. 07> 2006-; Audi A4/S4 Cabrio./qu. 07> 2006-; Audi A4/S4/Av./qu. 05> 2005-; Touareg 2005-2006; Phaeton (lang) 2003-2006; Touareg 2003-2005; Audi A4/S4 Cabrio./qu. 2002-2006; Audi A4/S4/Av./qu. 2001-2004; Audi A6 Allroad qu. 2000-2005.