2018-2024 Audi RS5/S4/S5 Coolant Reservoir Breather Hose / Line 8W1121081BK

OEM Part #: 8W1-121-081-BK (8W1121081BK)

$13.99
Used
Donor2019 Audi S5 · 3.0L
SKU: 621910 · 30-Day Returns
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Coolant Reservoir Breather Hose / Line 8W1121081BK — Used (SKU 621910)
Genuine OEM Used SKU: 621910 Donor Vehicle: 2019 Audi S5 · 3.0L 2 photos
$13.99
30-Day Returns
Coolant Reservoir Breather Hose / Line 8W1121081BK — Used (SKU 699954)
Genuine OEM Used SKU: 699954 Donor Vehicle: 2019 Audi S5 · 3.0L 2 photos
$14.99
30-Day Returns
  • Genuine OEM — real photos
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A used OEM Audi Coolant Reservoir Breather Hose / Line, part number 8W1121081BK, also superseding 8W1121081BD. This breather line connects the coolant reservoir to the engine's cooling system, allowing trapped air and pressure to escape during normal operation. When this hose develops a crack or leak, you may notice coolant loss, low reservoir levels, or a visible drip under the hood. It's designed for Audi S4, S5, RS5, and RS5 Sportback models with 2.9L twin-turbo V6 or 3.0L supercharged/turbocharged V6 engines.

Specifications

Specifications for Coolant Reservoir Breather Hose / Line 8W1121081BK
Fits Vehicle ModelRS5, S4, S5
Fits Vehicle MakeAudi
OEM Part No8W1-121-081-BK (8W1121081BK)
Compatible OEM Part No 8W1-121-081-BD
CategoryRadiator / Coolant

Compatible Vehicles

Fits 39 vehicle configurations across 1 make, 2018-2024.

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.

Audi

  • RS5 2018-2024 · 11 variants 11 with notes
  • S4 2018-2024 · 7 variants 7 with notes
  • S5 2018-2024 · 21 variants 21 with notes
View all 39 vehicle configurations — 39 with fitment notes
Full vehicle fitment list for Coolant Reservoir Breather Hose / Line 8W1121081BK
Year Make Model Trim Engine Note
2020 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2020 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2018 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2018 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2018 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2018 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2018 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2020 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2019 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2020 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2023 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2024 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2022 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date After 07/09/18
2021 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date After 07/09/18

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