2019-2024 Audi A6 Coolant Hose / Line 4K0121109AQ
OEM Part #: 4K0-121-109-AQ (4K0121109AQ)
Actual photo
The exact part you’ll receive — not a stock photo.
$12.13
Used
Donor2019 Audi A6 · 3.0L
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Genuine OEM Used
SKU: 567490
Donor Vehicle: 2019 Audi A6 · 3.0L
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$12.13
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Genuine OEM Audi coolant hose / line, part number 4K0121109AQ, sourced from a donor vehicle. This used hose is designed for the 3.0L 2995CC V6 MHEV (Mild Hybrid EV-Gas) DOHC Turbocharged engine in the Audi A6 Quattro. It carries engine coolant between components; a failure often results in a visible leak or low coolant warning.
Specifications
| Fits Vehicle Model | A6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4K0-121-109-AQ (4K0121109AQ) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2019-2024.
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 |
|---|---|---|---|---|---|
| 2024 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2022 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo |