2008-2012 Audi S5 Coolant Reservoir Tank Hose / Line 8K0121109
OEM Part #: 8K0-121-109 (8K0121109)
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:
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This coolant reservoir tank hose, designated as part number 8K0121109, is designed for efficient fluid transfer from the engine cooling system. Located on the lower right side of vehicles, it plays a critical role in maintaining optimal coolant circulation. This part addresses common issues such as leaks and obstructions, ensuring that your engine operates at the correct temperature. Compatible with 2008-2017 Audi S5 models equipped with both the 4.2L V8 and 3.0L V6 engines, this hose is also referred to as the water hose or engine coolant reservoir hose. Other interchangeable part numbers include 8K0121109AB, 8K0121109AA, and 8K0121109L.
Specifications
| Fits Vehicle Model | S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-109 (8K0121109) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 5 vehicle configurations across 1 make, 2008-2012.
View all 5 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2008 | Audi | S5 | Coupe | 4.2L V8 | |
| 2009 | Audi | S5 | Coupe | 4.2L V8 | |
| 2010 | Audi | S5 | Coupe | 4.2L V8 | |
| 2011 | Audi | S5 | Coupe | 4.2L V8 | |
| 2012 | Audi | S5 | Coupe | 4.2L V8 |