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Genuine OEM & performance parts — ships to United States

Product overview

Genuine OEM Volkswagen Voltage Regulator, part number 03G903803. This component is responsible for controlling the output voltage of the alternator, ensuring that the vehicle's battery is charged correctly and that all electrical systems receive a stable power supply. It is a critical part of the charging system. Genuine OEM voltage regulators are precisely calibrated to match the vehicle's electrical demands, ensuring reliable performance and preventing damage to sensitive electronics.

Technical details

Category
Electrical & Wiring
Country of origin
Hungary
Customs (HS) code
85118000
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
8.5 × 7 × 4 cm
Shipping weight
0.1 kg

Parts diagram & fitment

17 vehicles

Voltage Regulator — locate 03G903803 Volkswagen Voltage Regulator | Genuine OEM in the official exploded view and explore the surrounding assembly.

Parts in this assembly(35)

Diagrams & fitment data powered by oemdiagrams.com

03G903803 Volkswagen Voltage Regulator | Genuine OEM is fitted on: Passat/4Motion 2005-2007; CRAFTER 06> 2006-; Passat/4Motion 08 2007-; Passat CC 2008-2012; passat estate 2008-2011; transp. caravelle 2009-2011; transp. dropside 2009-2011; California Camper 2009-2011; Passat saloon 2010-2015; Crafter 35 panel 2011-2016; transp. caravelle 2011-2015; transp. dropside 2011-2015; California Camper 2011-2015; Passat CC 2011-2016; superb comfort 2008-2013; Yeti 2009-2013; Yeti 2013-2017.