2017-2026 Audi Q7/Q8/RS Q8/SQ7/SQ8 Upper Dash Defrost Air Vent Right 4M8819794
OEM Part #: 4M8-819-794 (4M8819794)
Actual photo
The exact part you’ll receive — not a stock photo.
$14.99
Side: Right
Used
ColorSabre (Black)
Donor2021 Audi SQ8 · 4.0L · 47k miles
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Only 1 in stock — no guaranteed restock
Genuine OEM Used
SKU: 700944 · Sabre (Black)
Donor Vehicle: 2021 Audi SQ8 · 4.0L · 47k miles
3 photos
HAS A CRACKED MOUNT, SEE PICTURES
$14.99
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Used OEM Audi Upper Dash Defrost Air Vent, right side, part number 4M8819794. This is the genuine plastic vent that directs defrosting airflow across the windshield base on Audi Q7, Q8, RS Q8, SQ7, and SQ8 models. It fits a range of turbocharged and supercharged engines including 2.0L and 3.0L gas units, 3.0L diesel, and 4.0L V8 MHEV variants. When this vent cracks or becomes blocked, it can cause poor windshield defrosting or fogging.
Specifications
| Fits Vehicle Model | Q7, Q8, RS Q8, SQ7, SQ8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4M8-819-794 (4M8819794) |
| Side | Right |
| Category | HVAC / Climate Control |
Compatible Vehicles
Fits 48 vehicle configurations across 1 make, 2017-2026.
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 48 vehicle configurations — 13 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2026 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2025 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2026 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2026 | Audi | SQ8 | SUV | 4.0L V8 Turbo | |
| 2023 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2022 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2021 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2020 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2025 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2022 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2021 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2020 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2023 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2025 | Audi | Q8 | SUV | 3.0L V6 Turbo | steel gray |
| 2025 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2024 | Audi | SQ8 | SUV | 4.0L V8 Turbo | steel gray |
| 2024 | Audi | SQ7 | SUV | 4.0L V8 Turbo | Gray |
| 2025 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2025 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2026 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2026 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2019 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2024 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2024 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2020 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2020 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2018 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2018 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2017 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2017 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2019 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2019 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2021 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2021 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2022 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2020 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2021 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2024 | Audi | Q7 | SUV | 2.0L l4 Turbo | |
| 2023 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2024 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2020 | Audi | RS Q8 | SUV | 4.0L V8 Turbo | |
| 2021 | Audi | Q7 | SUV | 2.0L l4 Turbo |