2004-2009 Audi S4 Lower Radiator Coolant Hose / Line 8E0121055AD
OEM Part #: 8E0-121-055-AD (8E0121055AD)
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
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- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
Discover the authentic OEM Lower Radiator Coolant Hose (Part Number: 8E0121055AD), meticulously sourced from European salvage vehicles. This essential water hose assembly plays a critical role in your vehicle's cooling system by transferring coolant from the radiator to the engine and back, ensuring optimal engine temperatures. Commonly referred to as a water hose, this part is paramount for preventing overheating and maintaining performance. Compatible with various Audi models, including the 2005-2009 S4 and 2008 RS4, each fitted with a 4.2L V8 engine, this hose fits seamlessly in the lower radiator assembly. Its integrity is vital for a system that relies on efficient coolant flow. Replacing worn or damaged hoses with this genuine part will resolve issues like leaks and overheating, enhancing your vehicle's functionality. Other compatible part numbers include N90770201 and 8E0121251AJ. Trust this factory-original component to restore your Audi's performance.
Specifications
| Fits Vehicle Model | S4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8E0-121-055-AD (8E0121055AD) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 15 vehicle configurations across 1 make, 2004-2009.
View all 15 vehicle configurations — 3 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2004 | Audi | S4 | Wagon | 4.2L V8 | |
| 2004 | Audi | S4 | Sedan | 4.2L V8 | |
| 2005 | Audi | S4 | Wagon | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 023001 |
| 2005 | Audi | S4 | Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 023001 |
| 2005 | Audi | S4 | Convertible | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 901101 |
| 2006 | Audi | S4 | Wagon | 4.2L V8 | |
| 2006 | Audi | S4 | Sedan | 4.2L V8 | |
| 2006 | Audi | S4 | Convertible | 4.2L V8 | |
| 2007 | Audi | S4 | Wagon | 4.2L V8 | |
| 2007 | Audi | S4 | Sedan | 4.2L V8 | |
| 2007 | Audi | S4 | Convertible | 4.2L V8 | |
| 2008 | Audi | S4 | Wagon | 4.2L V8 | |
| 2008 | Audi | S4 | Sedan | 4.2L V8 | |
| 2008 | Audi | S4 | Convertible | 4.2L V8 | |
| 2009 | Audi | S4 | Convertible | 4.2L V8 |