Audi S4/S5 Coolant Reservoir Hose / Line 8K0121081AE
OEM Part #: 8K0-121-081-AE (8K0121081AE)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Coolant Hose / Pipe / Line that may fit your vehicle
Coolant / Water Hose
$19.99
Fits 2013–2017 Audi S4 / S5
OEM: 8K0121081BK
Coolant / Water Hose
Starting at $12.99
Fits 2013–2024 Audi
OEM: 06E121030H
Coolant / Water Hose
Starting at $11.99
Fits 2013–2024 Audi
OEM: 06E121545C
Coolant / Water Hose
$11.49
Fits 2005–2015 Audi & Volkswagen
OEM: 06E121058D
Coolant / Water Pump Hose
$18.99
Fits 2010–2012 Audi S4 / S5
OEM: 8K0145921F
Coolant / Water Pump Hose / Line
Starting at $12.99
Fits 2013–2017 Audi S4 / S5
OEM: 8K0145921Q
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-081-AE (8K0121081AE) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 9 vehicle configurations across 1 make, 2010-2013.
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 9 vehicle configurations — 6 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2010 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2010 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2011 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2011 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2012 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2013 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Vehicles With Production date Up To 04/09/12 |
| 2013 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Vehicles With Production date Up To 04/09/12 |
| 2013 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles With Production date Up To 04/09/12 |