2019-2020 Audi A6/S6 AC Hose / Line / Pipe 4K1816740AD
OEM Part #: 4K1-816-740-AD (4K1816740AD)
Actual photo
The exact part you’ll receive — not a stock photo.
$21.49
Used
Donor2019 Audi A6 · 3.0L
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Genuine OEM Used
SKU: 567488
Donor Vehicle: 2019 Audi A6 · 3.0L
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$21.49
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Audi AC Hose / Line / Pipe, OEM part number 4K1816740AD, is a genuine used part from a donor vehicle. This air conditioning line also replaces numbers 4K1816740AA and 4K1816740L. It is designed for Audi A6, S6, and S7 models with 2.0L turbocharged, 2.9L, or 3.0L MHEV engines. A failing AC hose can cause refrigerant leaks, reduced cooling performance, or a complete loss of air conditioning function.
Specifications
| Fits Vehicle Model | A6, S6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4K1-816-740-AD (4K1816740AD) |
| Compatible OEM Part No | 4K1-816-740-AA, 4K1-816-740-L |
| Category | Air Conditioning |
Compatible Vehicles
Fits 5 vehicle configurations across 1 make, 2019-2020.
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 |
|---|---|---|---|---|---|
| 2019 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2020 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2020 | Audi | S6 | Sedan | 2.9L V6 Turbo | |
| 2020 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo |