2005-2009 Audi A8 Coolant Pipe / Tube / Line 4E0121398F
OEM Part #: 4E0-121-398-F (4E0121398F)
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The exact part you’ll receive — not a stock photo.
$75.49
Used
Donor2005 Audi A8 · 6.0L
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Genuine OEM Used
SKU: 681715
Donor Vehicle: 2005 Audi A8 · 6.0L
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$75.49
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From an Audi A8 Quattro donor, this used OEM coolant pipe / tube / line (part 4E0121398F) manages coolant flow through the engine bay. Designed for the 6.0L W12, it routes coolant between components to maintain proper operating temperature. Over time these pipes can crack or develop leaks at connection points, leading to low coolant levels or overheating.
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4E0-121-398-F (4E0121398F) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 5 vehicle configurations across 1 make, 2005-2009.
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 5 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2008 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2009 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2005 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2007 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2006 | Audi | A8 | Quattro L Sedan | 6.0L W12 |