United States
Product overview
Genuine OEM Audi Alternator Voltage Regulator, part number 038903803EX. This essential electrical component is responsible for controlling the output voltage of the alternator, maintaining a stable power supply for the vehicle's electrical systems and battery charging. It weighs approximately 0.10 kg. Choosing a genuine OEM voltage regulator ensures precise electrical calibration, optimal charging performance, and long-term reliability for your vehicle's electrical system.
Technical details
- Category
- Battery & Charging
- Country of origin
- Hungary
- Customs (HS) code
- 85118000
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 11 × 7 × 3.5 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
44 vehiclesVoltage Regulator — locate 038903803EX Audi Alternator Voltage Regulator | Genuine OEM in the official exploded view and explore the surrounding assembly.
This part is marked discontinued by the manufacturer (since 2023-02-01); contact us to check current availability.
Parts in this assembly48
- 1Alternator 028903018A
- 1Alternator 028903018B
- 1Alternator 028903018C
- 1Alternator 028903018F
- 1Alternator 028903029GX
- 1Alternator 030903023HX
- 1Alternator 036903018AX
- 1Alternator 037903018DX
- 1Alternator 038903018P
- 1Alternator 038903018PX
- 1Alternator 038903018Q
- 1Alternator 038903018QX
- 1Alternator 038903018R
- 1Alternator 038903018RX
- 1Alternator 06A903026AX
- 1Alternator 06B903018SX
- 1Alternator JZW903021X
- 1Alternator JZW903021AX
- 1Alternator JZW903021BX
- 1Alternator JZW903021EX
- 1Alternator JZW903021FX
- 1Alternator JZW903021JX
- 1Alternator JZW903021PX
- 1Alternator 028903018X
- 2Part 022903119A
- 2Pulley 038903119B
- 2Part 038903119
- 3Part 028903193E
- 3Part 028903193G
- 3Part 028903193H
- 3Part 028903193M
- 3Part 028903193P
- 3Part 038903193C
- 3Part 038903193E
- 3Part 038903193F
- 3Part 038903193G
- 3Part 038903193H
- 3Part 047903193
- 3Part 06F903193A
- 4Regulator 028903803D
- 4Regulator 028903803DX
- 4Part 06B903803B
- 4Regulator 078903803EX
- 4Regulator 047903803
- 5Repair Kit 028903320C
- 6Part 037145291
- 14Part N01100840
- 15Part N90403002
Vehicle fitment table44
Europe (39)
| Vehicle | Years | Pos. | Remark | PR |
|---|---|---|---|---|
| Audi A4/S4/Av./qu. 05> | 2005- | 4 | ||
| CORDOBA 06> | 2005- | 4 | ||
| FABIA/COMBI 05> | 2004- | 4 | ||
| LT, LT 4X4 | 2003-2006 | 4 | ||
| Touareg | 2003-2005 | 4 | ||
| LUPO/3L TDI | 2003-2005 | 4 | ||
| AROSA | 2003-2004 | 4 | ||
| Jetta/Wagon | 2002-2006 | 4 | ||
| PASSAT/4MOTION/W8 | 2002-2005 | 4 | ||
| CORDOBA/SE241 | 2002-2005 | 4 | ||
| SUPERB 02> | 2001- | 4 | 1, | |
| TOLEDO/LEON/LEON-4 | 2001-2006 | 4 | ||
| IBIZA | 2001-2005 | 4 | ||
| Audi A6/Wagon/quattro | 2001-2004 | 4 | ||
| Jetta Wagon | 2001-2001 | 4 | ||
| AUDI A2 | 2000-2005 | 4 | ||
| AUDI A3/S3/QUATTRO | 2000-2003 | 4 | ||
| Passat/4Motion/W8 | 2000-2002 | 4 | ||
| AUDI RS4 AV. QU. | 2000-2001 | 4 | ||
| FABIA/COMBI | 1999-2004 | 4 | 1, | |
| Audi TT Coupe/Roadster | 1999-2002 | 4 | ||
| Audi A8 quattro | 1999-2002 | 4 | ||
| CORDOBA/VARIO | 1999-2002 | 4 | ||
| IBIZA | 1999-2002 | 4 | ||
| POLO CLASSIC/VARIANT | 1999-2001 | 4 | ||
| Audi A4/Avant | 1999-2001 | 4 | ||
| Audi A4/Av.qu. | 1999-2001 | 4 | ||
| LUPO/3L TDI | 1998-2003 | 4 | ||
| AUDI A8 | 1998-2002 | 4 | ||
| TOLEDO/LEON/LEON-4 | 1998-2001 | 4 | ||
| Golf | 1998-2000 | 4 | ||
| Passat syncro/4Motion | 1998-2000 | 4 | ||
| AROSA | 1997-2003 | 4 | ||
| Audi A6/Avant | 1997-2001 | 4 | ||
| Audi A6/Av.qu.F4B-W-> | 1997-2001 | 4 | ||
| Passat | 1997-2000 | 4 | ||
| AUDI A3/S3/QUATTRO | 1996-2000 | 4 | ||
| OCTAVIA/COMBI/4X4 | 1996-2000 | 4 | ||
| INCA (SEAT-VAN) | 1995-2003 | 4 |
Other markets (3)
| Vehicle | Years | Pos. | Remark | PR |
|---|---|---|---|---|
| Golf 'R32' n. "USA" | 2004-2004 | 4 | ||
| MARINE-MOTOR 02> | 2002- | 2 | ||
| Eurovan | 1998-2003 | 4 |
Platform / generic diagrams (2)
| Vehicle | Years | Pos. | Remark | PR |
|---|---|---|---|---|
| 6K0 platform | 4 | BOSCH | ||
| 6K0 platform | 4 | BOSCH |
Diagrams & fitment data powered by oemdiagrams.com
038903803EX Audi Alternator Voltage Regulator | Genuine OEM is fitted on: Audi A4/S4/Av./qu. 05> 2005-; CORDOBA 06> 2005-; FABIA/COMBI 05> 2004-; LT, LT 4X4 2003-2006; Touareg 2003-2005; LUPO/3L TDI 2003-2005; AROSA 2003-2004; Jetta/Wagon 2002-2006; PASSAT/4MOTION/W8 2002-2005; CORDOBA/SE241 2002-2005; SUPERB 02> 2001-; TOLEDO/LEON/LEON-4 2001-2006; IBIZA 2001-2005; Audi A6/Wagon/quattro 2001-2004; Jetta Wagon 2001-2001; AUDI A2 2000-2005; AUDI A3/S3/QUATTRO 2000-2003; Passat/4Motion/W8 2000-2002; AUDI RS4 AV. QU. 2000-2001; FABIA/COMBI 1999-2004; Audi TT Coupe/Roadster 1999-2002; Audi A8 quattro 1999-2002; CORDOBA/VARIO 1999-2002; IBIZA 1999-2002; POLO CLASSIC/VARIANT 1999-2001; Audi A4/Avant 1999-2001; Audi A4/Av.qu. 1999-2001; LUPO/3L TDI 1998-2003; AUDI A8 1998-2002; TOLEDO/LEON/LEON-4 1998-2001; Golf 1998-2000; Passat syncro/4Motion 1998-2000; AROSA 1997-2003; Audi A6/Avant 1997-2001; Audi A6/Av.qu.F4B-W-> 1997-2001; Passat 1997-2000; AUDI A3/S3/QUATTRO 1996-2000; OCTAVIA/COMBI/4X4 1996-2000; INCA (SEAT-VAN) 1995-2003; Golf 'R32' n. "USA" 2004-2004; MARINE-MOTOR 02> 2002-; Eurovan 1998-2003; 6K0 platform.