1996-2005 Audi / Volkswagen Cylinder Head Coolant Pipe / Tube 078121071BS
OEM Part #: 078-121-071-BS (078121071BS)
Actual photo
The exact part you’ll receive — not a stock photo.
$209.99
Used
Donor2003 Volkswagen PASSAT · 2.8L
✓ Free Same Day Shipping on orders by noon CT
Only 1 in stock — no guaranteed restock
Genuine OEM Used
SKU: 702418
Donor Vehicle: 2003 Volkswagen PASSAT · 2.8L
2 photos
$209.99
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
A used genuine Audi cylinder head coolant pipe / tube, OEM part number 078121071BS, also supersedes 078121071BC. This metal pipe routes coolant from the rear of the cylinder head on 2.8L V6 engines (both DOHC and SOHC naturally aspirated versions). When this tube develops a leak, it typically causes a slow coolant loss and visible drips near the back of the engine, often leading to overheating if left unchecked.
Specifications
| Fits Vehicle Model | A4, A6, Passat |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 078-121-071-BS (078121071BS) |
| Compatible OEM Part No | 078-121-071-BC |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 56 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.
View all 56 vehicle configurations — 26 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1998 | Audi | A6 | Sedan | 2.8L V6 | |
| 2005 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2004 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2003 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 1998 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1997 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 2000 | Audi | A6 | Sedan | 2.8L V6 | |
| 1998 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1997 | Audi | A4 | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 2005 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 1999 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 1999 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1999 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2003 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2001 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2005 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2000 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2003 | Volkswagen | Passat | 4 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 |
| 2000 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Audi | A4 | Sedan | 2.8L V6 | |
| 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 | |
| 2000 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2003 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | |
| 1998 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro 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 |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 1996 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1998 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A4 | Wagon | 2.8L V6 | |
| 1999 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 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 | |
| 1999 | Audi | A4 | Sedan | 2.8L V6 |