2016-2018 Audi A6/S6 Auxiliary Radiator Air Guide / Duct (OUTER) Left 4G0121333J
OEM Part #: 4G0-121-333-J (4G0121333J)
Actual photo
The exact part you’ll receive — not a stock photo.
$104.49
Side: Left
Used
Donor2016 Audi S6 · 4.0L
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Genuine OEM Used
SKU: 650504
Donor Vehicle: 2016 Audi S6 · 4.0L
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$104.49
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This used OEM Audi auxiliary radiator air guide (part number 4G0121333J) is the left outer duct, directing airflow to the auxiliary radiator. Also called the duct, it came from a donor vehicle. It fits Audi A6 and S6 models equipped with the 3.0L V6 diesel turbo, 3.0L V6 gas supercharged, or 4.0L V8 gas turbocharged engines. A cracked or missing guide can reduce cooling efficiency, leading to higher coolant temperatures or degraded AC performance.
Specifications
| Fits Vehicle Model | A6, S6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4G0-121-333-J (4G0121333J) |
| Side | Left |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 7 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 7 vehicle configurations — 4 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2018 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For S Line Only |
| 2017 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | For S Line Only; For Vehicles with Production Date After 05/30/16 |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For S Line Only |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For S Line Only |