1998-2015 Audi / Volkswagen Auxiliary / Secondary Coolant Water Pump 078121601

OEM Part #: 078-121-601 (078121601)

$69.99
Used
Donor2000 Audi A4 · 2.8L
SKU: 669252 · 30-Day Returns
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Auxiliary / Secondary Coolant Water Pump 078121601 — Used (SKU 669252)
Genuine OEM Used SKU: 669252 Donor Vehicle: 2000 Audi A4 · 2.8L 2 photos
$69.99
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A used OEM Audi auxiliary / secondary coolant water pump, part number 078121601. Also known as a secondary water pump, this unit assists the main cooling system by circulating coolant for cabin heat or post-shutdown thermal management. When it fails, you may notice reduced heater output or a coolant leak near the pump. Fits select 2.8L V6 and 4.2L V8 engines from Audi and Volkswagen.

Specifications

Specifications for Auxiliary / Secondary Coolant Water Pump 078121601
Fits Vehicle ModelA4, A6, Passat, R8
Fits Vehicle MakeAudi, Volkswagen
OEM Part No078-121-601 (078121601)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 38 vehicle configurations across 2 makes, 1998-2015.

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 1998-2001 · 13 variants 6 with notes
  • A6 1998-2001 · 11 variants 3 with notes
  • R8 2014-2015 · 4 variants 4 with notes

Volkswagen

  • Passat 1999-2001 · 10 variants 2 with notes
View all 38 vehicle configurations — 15 with fitment notes
Full vehicle fitment list for Auxiliary / Secondary Coolant Water Pump 078121601
Year Make Model Trim Engine Note
2001 Audi A6 Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 007000
1999 Volkswagen Passat Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 145414
2000 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2000 Volkswagen Passat Wagon 2.8L V6
2000 Audi A4 Sedan 2.8L V6
2001 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2014 Audi R8 Coupe 4.2L V8 For Manual Transmission
2000 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2001 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2014 Audi R8 Spyder Convertible 4.2L V8 For Manual Transmission
2001 Audi A4 Sedan 2.8L V6
1999 Volkswagen Passat Wagon 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 145414
2000 Volkswagen Passat Sedan 2.8L V6
2015 Audi R8 Coupe 4.2L V8 For Manual Transmission
2015 Audi R8 Spyder Convertible 4.2L V8 For Manual Transmission
2000 Volkswagen Passat 4 Wagon 2.8L V6
2001 Volkswagen Passat 4 Wagon 2.8L V6
1999 Audi A6 Quattro Sedan 2.8L V6
1998 Audi A6 Sedan 2.8L V6
1999 Audi A4 Sedan 2.8L V6
2001 Volkswagen Passat 4 Sedan 2.8L V6
1998 Audi A4 Sedan 2.8L V6
1998 Audi A4 Quattro Sedan 2.8L V6
2000 Audi A6 Sedan 2.8L V6
1998 Audi A4 Wagon 2.8L V6
1998 Audi A6 Quattro Sedan 2.8L V6
2001 Volkswagen Passat Sedan 2.8L V6
1999 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2001 Volkswagen Passat Wagon 2.8L V6
2000 Audi A6 Quattro Wagon 2.8L V6
1999 Audi A6 Sedan 2.8L V6
1999 Audi A6 Quattro Wagon 2.8L V6
2001 Audi A6 Quattro Wagon 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 007000
1999 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2000 Audi A6 Quattro Sedan 2.8L V6
2001 Audi A6 Quattro Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 007000
2000 Volkswagen Passat 4 Sedan 2.8L V6
1998 Audi A4 Quattro Wagon 2.8L V6

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