2017-2024 Audi A5/S5 Upper Door Seal / Weather Stripping (INNER) Front, Left 8W7831721B
OEM Part #: 8W7-831-721-B (8W7831721B)
Actual photo
The exact part you’ll receive — not a stock photo.
$34.49
Side: Front, Left
Used
Donor2019 Audi A5 · 2.0L · 38k miles
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Genuine OEM Used
SKU: 574737
Donor Vehicle: 2019 Audi A5 · 2.0L · 38k miles
3 photos
$34.49
30-Day Returns
Genuine OEM Used
SKU: 648926
Donor Vehicle: 2018 Audi A5 · 2.0L
3 photos
$41.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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A used genuine Audi OEM Upper Door Seal / Weather Stripping (inner), part number 8W7831721B, for the front left side. This gasket also replaces 8W7831721. It seals the inner door opening against wind noise and water intrusion on Audi A5 Quattro and S5 models with a variety of 2.0L and 3.0L engines. When the original weather strip hardens or tears, it can cause cabin drafts or leaks.
Specifications
| Fits Vehicle Model | A5, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W7-831-721-B (8W7831721B) |
| Compatible OEM Part No | 8W7-831-721 |
| Side | Front, Left |
| Category | Doors |
Compatible Vehicles
Fits 16 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
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 16 vehicle configurations — 12 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2024 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date After 07/01/19 |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 06/30/19 |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 06/30/19 |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles With Production date Up To 06/30/19 |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles With Production date Up To 06/30/19 |