Audi S4/S5 Auxiliary Radiator Coolant Hose / Line Left 8K0145921C
OEM Part #: 8K0-145-921-C (8K0145921C)
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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:
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Restore your Audi's cooling system with this genuine OEM Auxiliary Radiator Coolant Hose, part number 8K0145921C. Designed for seamless integration, this hose fits perfectly in 2010-2012 Audi S4 and S5 models equipped with the 3.0L V6 engine. This upper hose efficiently manages coolant flow, preventing overheating by routing coolant to and from the auxiliary radiator. Replace worn or damaged hoses to resolve overheating issues or coolant leaks. Alternative names include Upper Hose and Outlet Hose, ensuring you get the right fit for your repair. This factory-original part guarantees reliable performance and maintains the integrity of your vehicle's cooling system. Compatible with part numbers N90925001, N90687001, and more.
Specifications
| Fits Vehicle Model | S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-145-921-C (8K0145921C) |
| Side | Left |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2010-2012.
View all 6 vehicle configurations — 4 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 | For Vehicles with Production Date After 04/19/10 |
| 2012 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |