Audi / Volkswagen Engine Coolant Pipe / Tube / Line Front 078121081M

OEM Part #: 078-121-081-M (078121081M)

This page covers one exact OEM part number. Every unit we stocked has sold.

This factory-original ENGINE COOLANT PIPE (OEM Part Number 078121081M) is engineered for precise compatibility with select Audi and Volkswagen models. Designed for vehicles such as the Audi S4 (2000, 2002), A6 and A6 Quattro (1998-2001), and A4 and A4 Quattro (2000-2001), as well as the Volkswagen Passat (2000-2001), this coolant pipe is a crucial component for maintaining optimal engine temperature. Located at the front, it effectively channels coolant throughout the engine, preventing overheating and ensuring peak performance. Replacing a worn or damaged coolant pipe can resolve issues like coolant leaks and overheating, restoring functionality to your vehicle. Trust this authentic OEM part to deliver the same quality and fit as intended by the manufacturer.

Specifications

Specifications for Engine Coolant Pipe / Tube / Line 078121081M
Fits Vehicle ModelA4, A6, Passat, S4
Fits Vehicle MakeAudi, Volkswagen
OEM Part No078-121-081-M (078121081M)
SideFront
CategoryRadiator / Coolant

Compatible Vehicles

Fits 29 vehicle configurations across 2 makes, 1998-2002.

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 2000-2001 · 6 variants 4 with notes
  • A6 1998-2001 · 12 variants 7 with notes
  • S4 2000-2002 · 3 variants 1 with note

Volkswagen

  • Passat 2000-2001 · 8 variants
View all 29 vehicle configurations — 12 with fitment notes
Full vehicle fitment list for Engine Coolant Pipe / Tube / Line 078121081M
Year Make Model Trim Engine Note
1998 Audi A6 Sedan 2.8L V6
1998 Audi A6 Quattro Sedan 2.8L V6
1999 Audi A6 Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 131001
1999 Audi A6 Quattro Wagon 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 131001
1999 Audi A6 Quattro Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Greater Than 131001
2000 Audi A4 Sedan 2.8L V6
2000 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2000 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with Engine Code(s) AHA, ATQ
2000 Audi A6 Sedan 2.8L V6
2000 Audi A6 Quattro Wagon 2.8L V6
2000 Audi A6 Quattro Sedan 2.7L V6 Turbo For Vehicles Where Last 6 Digits of VIN Number are Between 000001 and 020000
2000 Audi A6 Quattro Sedan 2.8L V6
2000 Audi S4 Sedan 2.7L V6 Turbo For Vehicles Where Last 6 Digits of VIN Number are Less Than 033555
2001 Audi A4 Sedan 2.8L V6
2001 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
2001 Audi A6 Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 120000
2001 Audi A6 Quattro Wagon 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 120000
2001 Audi A6 Quattro Sedan 2.8L V6 For Vehicles Where Last 6 Digits of VIN Number are Less Than 120000
2002 Audi S4 Wagon 2.7L V6 Turbo
2002 Audi S4 Sedan 2.7L V6 Turbo
2000 Volkswagen Passat 4 Sedan 2.8L V6
2000 Volkswagen Passat 4 Wagon 2.8L V6
2000 Volkswagen Passat Sedan 2.8L V6
2000 Volkswagen Passat Wagon 2.8L V6
2001 Volkswagen Passat 4 Sedan 2.8L V6
2001 Volkswagen Passat 4 Wagon 2.8L V6
2001 Volkswagen Passat Sedan 2.8L V6
2001 Volkswagen Passat Wagon 2.8L V6

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