2013-2015 Audi RS5 Lower Radiator Coolant Hose / Line Left 8K0121055Q
OEM Part #: 8K0-121-055-Q (8K0121055Q)
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 / Radiator Coolant Hose that may fit your vehicle
Auxiliary Water Pump Hose / Line
Coolant / Water Hose
Coolant / Water Hose
Engine Coolant Pipe / Tube / Line
Engine Oil Cooler / Coolant Hose
Heater Core Coolant Hose / Line (RETURN)
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
This OEM lower radiator coolant hose (part number 8K0121055Q) is a direct replacement for your Audi RS5 (2013-2015) models, including the Base and Cabriolet body styles with the 4.2L V8 engine. As a critical component, this factory-original water hose is positioned on the left side of the vehicle, effectively channeling coolant to maintain optimal engine temperature. If your existing hose is worn, damaged, or leaking, replacing it with this authentic part ensures reliable performance and restores proper coolant flow. Alternative names include water hose. This part is compatible with various part numbers such as N90926501 and 8K0121251AM, among others.
Specifications
| Fits Vehicle Model | RS5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-055-Q (8K0121055Q) |
| Side | Left |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2013-2015.
View all 6 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2013 | Audi | RS5 | Convertible | 4.2L V8 | |
| 2013 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2014 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2014 | Audi | RS5 | Convertible | 4.2L V8 | |
| 2015 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2015 | Audi | RS5 | Convertible | 4.2L V8 |