1996-2005 Audi / Volkswagen Coolant / Water Tube / Pipe / Line 078121075AB

OEM Part #: 078-121-075-AB (078121075AB)

$48.99
Used
Donor2000 Audi A4 · 2.8L
SKU: 669365 · 30-Day Returns
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Coolant / Water Tube / Pipe / Line 078121075AB — Used (SKU 669365)
Genuine OEM Used SKU: 669365 Donor Vehicle: 2000 Audi A4 · 2.8L 2 photos
$48.99
30-Day Returns
Coolant / Water Tube / Pipe / Line 078121075AB — Used (SKU 702412)
Genuine OEM Used SKU: 702412 Donor Vehicle: 2003 Volkswagen PASSAT · 2.8L 2 photos
$49.99
30-Day Returns
  • Genuine OEM — real photos
  • 30-day returns on eligible parts
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This is a used OEM Audi coolant water tube, pipe, or line with part number 078121075AB. It also replaces earlier versions 078121075R, 078121075M, 078121075K, and 078121075H. This rigid coolant line routes engine coolant through the V6 block on 2.7L and 2.8L gas engines. A cracked or leaking tube can cause rapid coolant loss and overheating, as these plastic pipes are exposed to heat cycles.

Specifications

Specifications for Coolant / Water Tube / Pipe / Line 078121075AB
Fits Vehicle ModelA4, A6, Passat, S4
Fits Vehicle MakeAudi, Volkswagen
OEM Part No078-121-075-AB (078121075AB)
Compatible OEM Part No 078-121-075-R, 078-121-075-M, 078-121-075-K, 078-121-075-H
CategoryRadiator / Coolant

Compatible Vehicles

Fits 66 vehicle configurations across 2 makes, 1996-2005.

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 1996-2001 · 17 variants 10 with notes
  • A6 1998-2004 · 16 variants
  • S4 2000-2002 · 5 variants

Volkswagen

  • Passat 1998-2005 · 28 variants 16 with notes
View all 66 vehicle configurations — 26 with fitment notes
Full vehicle fitment list for Coolant / Water Tube / Pipe / Line 078121075AB
Year Make Model Trim Engine Note
1999 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 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
1999 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA
2005 Volkswagen Passat 4 Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2002 Volkswagen Passat Wagon 2.8L V6
2005 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
2004 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
2003 Volkswagen Passat 4 Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2001 Volkswagen Passat 4 Wagon 2.8L V6
2000 Audi A6 Quattro Sedan 2.7L V6 Turbo
2001 Audi A6 Quattro Sedan 2.7L V6 Turbo
2000 Audi A4 Sedan 2.8L V6
2001 Audi A6 Sedan 2.8L V6
1999 Audi A6 Quattro Sedan 2.8L V6
2002 Volkswagen Passat 4 Sedan 2.8L V6
2000 Volkswagen Passat 4 Sedan 2.8L V6
2004 Volkswagen Passat 4 Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
2004 Volkswagen Passat 4 Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2003 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2001 Audi A6 Quattro Sedan 2.8L V6
2000 Audi A6 Quattro Sedan 2.8L V6
1998 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA
1998 Audi A4 Quattro Wagon 2.8L V6
2001 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2002 Volkswagen Passat Sedan 2.8L V6
2000 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2000 Volkswagen Passat Sedan 2.8L V6
1999 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA
2000 Volkswagen Passat 4 Wagon 2.8L V6
2001 Audi A4 Sedan 2.8L V6
2001 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
1999 Audi A6 Quattro Wagon 2.8L V6
1997 Audi A4 Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 068001; For Vehicles with Engine Code(s) AFC, AHA
2004 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2003 Audi A6 Quattro Sedan 2.7L V6 Turbo
2001 Volkswagen Passat Sedan 2.8L V6
2003 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
1998 Audi A6 Quattro Sedan 2.8L V6
2001 Audi S4 Wagon 2.7L V6 Turbo
1998 Audi A4 Wagon 2.8L V6
1996 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA
1996 Audi A4 Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA
1998 Audi A4 Quattro Sedan 2.8L V6
1998 Audi A4 Sedan 2.8L V6
2001 Volkswagen Passat 4 Sedan 2.8L V6
2000 Audi S4 Sedan 2.7L V6 Turbo
1999 Audi A4 Sedan 2.8L V6
1998 Audi A6 Sedan 2.8L V6
1998 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA
1997 Audi A4 Quattro Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 068001; For Vehicles with Engine Code(s) AFC, AHA
2000 Audi A6 Sedan 2.8L V6
1999 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2002 Audi A6 Quattro Sedan 2.7L V6 Turbo
1999 Audi A6 Sedan 2.8L V6
2002 Volkswagen Passat 4 Wagon 2.8L V6
2001 Audi S4 Sedan 2.7L V6 Turbo
2001 Volkswagen Passat Wagon 2.8L V6
2000 Audi A6 Quattro Wagon 2.8L V6
2005 Volkswagen Passat 4 Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
2005 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Engine Code(s) ATQ
2002 Audi S4 Sedan 2.7L V6 Turbo
2002 Audi S4 Wagon 2.7L V6 Turbo
2003 Volkswagen Passat 4 Sedan 2.8L V6 For Vehicles with Engine Code(s) ATQ
2004 Audi A6 Quattro Sedan 2.7L V6 Turbo
2001 Audi A6 Quattro Wagon 2.8L V6

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