2017-2024 Audi A4/A5/RS5/S4/S5 Cabin Air Intake / HVAC Duct 8W1819904A
OEM Part #: 8W1-819-904-A (8W1819904A)
Actual photo
The exact part you’ll receive — not a stock photo.
$13.71
Used
Donor2019 Audi A5 SPORTBACK · 2.0L · 50k miles
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Genuine OEM Used
SKU: 531297
Donor Vehicle: 2019 Audi A5 SPORTBACK · 2.0L · 50k miles
3 photos
$13.71
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Genuine OEM Used
SKU: 555852
Donor Vehicle: 2018 Audi S5 SPORTBACK · 3.0L · 59k miles
3 photos
$13.71
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Genuine OEM Used
SKU: 545468
Donor Vehicle: 2018 Audi S5 SPORTBACK · 3.0L · 61k miles
3 photos
$13.71
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Genuine OEM Used
SKU: 514556
Donor Vehicle: 2019 Audi A5 · 2.0L · 25k miles
3 photos
$13.71
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Genuine OEM Used
SKU: 535788
Donor Vehicle: 2022 Audi A4 · 2.0L · 11k miles
3 photos
$13.71
30-Day Returns
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A used genuine OEM Audi cabin air intake / HVAC duct, part number 8W1819904A. This is the duct that channels outside air into the vehicle's HVAC system for cabin ventilation and climate control. It was removed from a donor Audi and is a direct OEM replacement. A common failure point is a cracked or blocked duct that reduces airflow or introduces debris into the cabin filter.
Specifications
| Fits Vehicle Model | A4, A5, RS5, S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W1-819-904-A (8W1819904A) |
| Category | HVAC / Climate Control |
Compatible Vehicles
Fits 76 vehicle configurations across 1 make, 2017-2024.
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
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and we’ll confirm the match.
View all 76 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2024 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2024 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2024 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2024 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2024 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2018 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2019 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2022 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2021 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2022 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2023 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2019 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2023 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2021 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Hatchback | 3.0L V6 Turbo |