2013-2018 Audi A8/S8 Coolant Hose / Line 4H0121059K
OEM Part #: 4H0-121-059-K (4H0121059K)
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The exact part you’ll receive — not a stock photo.
$14.99
Used
Donor2014 Audi A8 · 4.0L
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Genuine OEM Used
SKU: 540927
Donor Vehicle: 2014 Audi A8 · 4.0L
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$14.99
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A used genuine OEM Audi coolant hose, OEM part number 4H0121059K, originally removed from a donor vehicle. This line serves the 4.0L twin-turbo V8 found in the A8 Quattro and S8 models, carrying coolant to maintain proper engine temperature. Over time, these hoses can develop cracks or leaks at the connections, leading to coolant loss and possible overheating.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-121-059-K (4H0121059K) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 15 vehicle configurations across 1 make, 2013-2018.
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 15 vehicle configurations — 15 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CTGA, CTGF |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CEUA |