2016-2018 Audi A6/A7 Coolant / Water Hose 4G0121445AS
OEM Part #: 4G0-121-445-AS (4G0121445AS)
Actual photo
The exact part you’ll receive — not a stock photo.
$13.71
Used
Donor2016 Audi A6 · 3.0L
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Genuine OEM Used
SKU: 638090
Donor Vehicle: 2016 Audi A6 · 3.0L
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$13.71
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This Audi coolant hose, OEM 4G0121445AS, is a genuine used water hose removed from a donor vehicle. It’s designed for the 3.0L supercharged V6 (2995cc DOHC) found in the A6 and A7 Quattro. Also called a water hose, this rubber line circulates coolant between engine components; cracks or leaks here can lead to coolant loss and engine overheating.
Specifications
| Fits Vehicle Model | A6, A7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4G0-121-445-AS (4G0121445AS) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2016-2018.
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 6 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2018 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2018 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2017 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged |