Audi S4/S5 Coolant Hose / Line 8K0121109AB
OEM Part #: 8K0-121-109-AB (8K0121109AB)
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
Coolant / Water Hose
Coolant / Water Hose
Coolant / Water Hose
Coolant / Water Hose
Coolant / Water Hose
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This OEM Coolant Hose (Part Number: 8K0121109AB) is a vital component for maintaining the efficient cooling system of select Audi models, specifically the 2010-2017 Audi S4 and S5, as well as A4 Quattro (2013-2014) and A5 (2015-2016). Positioned within the engine compartment, this hose delivers cooled coolant from the reservoir to the engine, ensuring optimal thermal management, which is crucial for performance and longevity. Over time, the hose may wear out or become damaged, leading to potential overheating issues or coolant leaks. Replacing a faulty coolant hose with this genuine factory-original part helps prevent engine damage and maintains proper functioning of the vehicle's cooling system. Common symptoms of a worn-out hose include visible cracks, leaking coolant, or fluctuating engine temperatures. Trust in this OEM hose to restore reliability to your Audi's performance.
Specifications
| Fits Vehicle Model | S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-109-AB (8K0121109AB) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 19 vehicle configurations across 1 make, 2010-2017.
View all 19 vehicle configurations — 3 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 | |
| 2013 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2013 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2014 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2014 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2014 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2015 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2016 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2016 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged |