2005-2011 Audi A6/S6 Heater Coolant Hose / Line 4F1819374
OEM Part #: 4F1-819-374 (4F1819374)
Actual photo
The exact part you’ll receive — not a stock photo.
$6.49
Used
Donor2005 Audi A6 · 4.2L
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Genuine OEM Used
SKU: 260378
Donor Vehicle: 2005 Audi A6 · 4.2L
2 photos
$6.49
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Used Audi heater coolant hose / line OEM 4F1819374 — a genuine part removed from a donor vehicle. Also known as a heater coolant hose or heater coolant line, this component circulates engine coolant to the cabin heater core. Over time, the hose can crack or develop pinhole leaks, leading to coolant loss, reduced heater performance, or interior coolant odor. Fits multiple engine configurations including V6 and V8 variants.
Specifications
| Fits Vehicle Model | A6, S6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4F1-819-374 (4F1819374) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 31 vehicle configurations across 1 make, 2005-2011.
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 31 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2009 | Audi | A6 | Sedan | 3.2L V6 | |
| 2011 | Audi | A6 | Sedan | 3.2L V6 | |
| 2010 | Audi | A6 | Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2005 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2007 | Audi | S6 | Sedan | 5.2L V10 | |
| 2006 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2007 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2009 | Audi | S6 | Sedan | 5.2L V10 | |
| 2008 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Sedan | 3.2L V6 | |
| 2008 | Audi | S6 | Sedan | 5.2L V10 | |
| 2005 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2009 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2010 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2009 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2010 | Audi | S6 | Sedan | 5.2L V10 | |
| 2010 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2010 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2011 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2011 | Audi | A6 | Quattro Wagon | 3.0L V6 Supercharged | |
| 2011 | Audi | S6 | Sedan | 5.2L V10 | |
| 2011 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2009 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2008 | Audi | A6 | Quattro Sedan | 4.2L V8 |