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
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
17 vehiclesVoltage Regulator — locate 03G903803 Volkswagen Voltage Regulator | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly15
- 1AAlternator 021903026LX
- 1AAlternator 03G903023X
- 1AAlternator 06F903023FX
- 1AAlternator 06F903023GX
- 1AAlternator 06F903023EX
- 2Part 022903119C
- 4Repair Kit 028903320C
- 5Prot Cap 037145291
- 6Regulator 06F903803A
- 6Regulator 06F903803AX
- 7Part 06E903193A
- 7Part 06F903193A
- 8Part N01100840
- 9Part N90403003
- 10Housing 4D0971992
Vehicle fitment table17
Europe (17)
| Vehicle | Years | Pos. | PR |
|---|---|---|---|
| Yeti | 2013-2017 | 6 | |
| Crafter 35 panel | 2011-2016 | 6 | |
| Passat CC | 2011-2016 | 7 | |
| transp. caravelle | 2011-2015 | 6 | |
| transp. dropside | 2011-2015 | 6 | |
| California Camper | 2011-2015 | 6 | |
| Passat saloon | 2010-2015 | 6 | |
| Yeti | 2009-2013 | 6 | |
| transp. caravelle | 2009-2011 | 6 | |
| transp. dropside | 2009-2011 | 6 | |
| California Camper | 2009-2011 | 6 | |
| superb comfort | 2008-2013 | 4 | 10 |
| Passat CC | 2008-2012 | 6 | |
| passat estate | 2008-2011 | 6 | |
| Passat/4Motion 08 | 2007- | 6 | |
| CRAFTER 06> | 2006- | 6 | |
| Passat/4Motion | 2005-2007 | 4 |
Diagrams & fitment data powered by oemdiagrams.com
03G903803 Volkswagen Voltage Regulator | Genuine OEM is fitted on: Yeti 2013-2017; Crafter 35 panel 2011-2016; Passat CC 2011-2016; transp. caravelle 2011-2015; transp. dropside 2011-2015; California Camper 2011-2015; Passat saloon 2010-2015; Yeti 2009-2013; transp. caravelle 2009-2011; transp. dropside 2009-2011; California Camper 2009-2011; superb comfort 2008-2013; Passat CC 2008-2012; passat estate 2008-2011; Passat/4Motion 08 2007-; CRAFTER 06> 2006-; Passat/4Motion 2005-2007.