2013-2015 Audi RS5 Auxiliary Water Pump Hose / Line 8K0121444A
OEM Part #: 8K0-121-444-A (8K0121444A)
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The exact part you’ll receive — not a stock photo.
$50.99
Used
Donor2013 Audi RS5 · 4.2L
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Genuine OEM Used
SKU: 634770
Donor Vehicle: 2013 Audi RS5 · 4.2L
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$50.99
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This used genuine OEM auxiliary water pump hose / line, Audi part number 8K0121444A, was removed from an Audi RS5 with the 4.2L 4163CC V8. Also called simply the auxiliary water pump line, it carries coolant to the auxiliary pump to support cabin heating and engine temperature regulation. A failing hose often develops cracks or seepage at the connector, leading to coolant loss and potential overheating.
Specifications
| Fits Vehicle Model | RS5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-444-A (8K0121444A) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 3 vehicle configurations across 1 make, 2013-2015.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
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View all 3 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2013 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2014 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2015 | Audi | RS5 | Coupe | 4.2L V8 |