Audi A4/S4 Water-Cooled Alternator - 190 Amp 079903021E

OEM Part #: 079-903-021-E (079903021E)

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Discover our OEM Water-Cooled Alternator - 190 Amp, a crucial component for your Audi, ensuring reliable electrical output for engine performance and vehicle accessories. Positioned prominently at the front of the engine bay, it effectively interfaces with the engine cooling system while charging the battery and powering electrical devices. This part is essential for models like the 2004-2009 Audi S4 and RS4, featuring a 4.2L V8 engine. Common issues such as battery failure, dimming headlights, or warning lights may indicate the need for a replacement. This alternator replaces part numbers such as 079903021E and other compatible variants. Ensure your vehicle's electrical system is maintained with this factory-original component.

Specifications

Specifications for Water-Cooled Alternator - 190 Amp 079903021E
Fits Vehicle ModelA4, S4
Fits Vehicle MakeAudi
OEM Part No079-903-021-E (079903021E)
CategoryBattery / Charging / Starting

Compatible Vehicles

Fits 40 vehicle configurations across 1 make, 2002-2009.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A4 2002-2005 · 24 variants
  • S4 2004-2009 · 16 variants
View all 40 vehicle configurations
Full vehicle fitment list for Water-Cooled Alternator - 190 Amp 079903021E
Year Make Model Trim Engine Note
2002 Audi A4 Sedan 1.8L l4 Turbo
2002 Audi A4 Sedan 3.0L V6
2002 Audi A4 Quattro Wagon 1.8L l4 Turbo
2002 Audi A4 Quattro Wagon 3.0L V6
2002 Audi A4 Quattro Sedan 1.8L l4 Turbo
2002 Audi A4 Quattro Sedan 3.0L V6
2003 Audi A4 Sedan 1.8L l4 Turbo
2003 Audi A4 Sedan 3.0L V6
2003 Audi A4 Quattro Wagon 1.8L l4 Turbo
2003 Audi A4 Quattro Wagon 3.0L V6
2003 Audi A4 Quattro Sedan 1.8L l4 Turbo
2003 Audi A4 Quattro Sedan 3.0L V6
2004 Audi A4 Sedan 1.8L l4 Turbo
2004 Audi A4 Sedan 3.0L V6
2004 Audi A4 Quattro Wagon 1.8L l4 Turbo
2004 Audi A4 Quattro Wagon 3.0L V6
2004 Audi A4 Quattro Sedan 1.8L l4 Turbo
2004 Audi A4 Quattro Sedan 3.0L V6
2004 Audi S4 Wagon 4.2L V8
2004 Audi S4 Sedan 4.2L V8
2004 Audi S4 Convertible 4.2L V8
2005 Audi A4 Sedan 1.8L l4 Turbo
2005 Audi A4 Sedan 3.0L V6
2005 Audi A4 Quattro Wagon 1.8L l4 Turbo
2005 Audi A4 Quattro Wagon 3.0L V6
2005 Audi A4 Quattro Sedan 1.8L l4 Turbo
2005 Audi A4 Quattro Sedan 3.0L V6
2005 Audi S4 Wagon 4.2L V8
2005 Audi S4 Sedan 4.2L V8
2005 Audi S4 Convertible 4.2L V8
2006 Audi S4 Wagon 4.2L V8
2006 Audi S4 Sedan 4.2L V8
2006 Audi S4 Convertible 4.2L V8
2007 Audi S4 Wagon 4.2L V8
2007 Audi S4 Sedan 4.2L V8
2007 Audi S4 Convertible 4.2L V8
2008 Audi S4 Wagon 4.2L V8
2008 Audi S4 Sedan 4.2L V8
2008 Audi S4 Convertible 4.2L V8
2009 Audi S4 Convertible 4.2L V8

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