1998-2005 Audi / Volkswagen Coolant Reservoir Tank Hose / Line 8D0121109N
OEM Part #: 8D0-121-109-N (8D0121109N)
Actual photo
The exact part you’ll receive — not a stock photo.
$29.99
Used
Donor2003 Volkswagen PASSAT · 2.8L
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Genuine OEM Used
SKU: 702414
Donor Vehicle: 2003 Volkswagen PASSAT · 2.8L
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$29.99
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Audi coolant reservoir tank hose / line, OEM part number 8D0121109N — a used genuine part. This is the hose or line connecting the coolant expansion tank on 2.8L 2771CC V6 gas engines. When the original hose develops cracks or becomes brittle, coolant can leak, leading to low coolant levels and potential overheating. A direct-fit replacement for Audi and Volkswagen models with that naturally aspirated V6.
Specifications
| Fits Vehicle Model | A4, A6, Passat |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 8D0-121-109-N (8D0121109N) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 28 vehicle configurations across 2 makes, 1998-2005.
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 28 vehicle configurations — 18 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1998 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |
| 2004 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | 4 Wagon | 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 |
| 2004 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2002 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |
| 2001 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2003 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2002 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 149001; For Vehicles with Engine Code(s) AHA, ATQ |
| 2002 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 149001; For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A4 | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 149001 |
| 2003 | 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 |
| 2004 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2001 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Sedan | 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 |
| 2003 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2002 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |