2008-2017 Audi Lower Radiator Coolant Hose / Line 8K0121055B
OEM Part #: 8K0-121-055-B (8K0121055B)
Actual photo
The exact part you’ll receive — not a stock photo.
$49.99
Used
Donor2013 Audi S5 · 3.0L
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Genuine OEM Used
SKU: 710190
Donor Vehicle: 2013 Audi S5 · 3.0L
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$49.99
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Audi lower radiator coolant hose / line, OEM 8K0121055B—a used genuine part that also replaces 8R0121049M. This hose carries coolant from the radiator to the engine on 3.0L supercharged V6 and 3.2L naturally aspirated V6 applications. A cracked or collapsed coolant line can cause overheating or visible leaks under the hood.
Specifications
| Fits Vehicle Model | A4, A5, Q5, S4, S5, SQ5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-055-B (8K0121055B) |
| Compatible OEM Part No | 8R0-121-049-M |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 36 vehicle configurations across 1 make, 2008-2017.
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
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 36 vehicle configurations — 3 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2016 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2016 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2016 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2011 | Audi | Q5 | SUV | 3.2L V6 | |
| 2017 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2017 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2009 | Audi | Q5 | SUV | 3.2L V6 | |
| 2010 | Audi | Q5 | SUV | 3.2L V6 | |
| 2012 | Audi | Q5 | SUV | 3.2L V6 | |
| 2009 | Audi | A4 | Quattro Sedan | 3.2L V6 | |
| 2008 | Audi | A5 | Quattro Coupe | 3.2L V6 | |
| 2009 | Audi | A5 | Quattro Coupe | 3.2L V6 | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2010 | Audi | A5 | Quattro Coupe | 3.2L V6 | |
| 2014 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2014 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2014 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2013 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2013 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2013 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2011 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2011 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2010 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles with Engine Code(s) CAKA, CCBA |
| 2010 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2015 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2013 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2014 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2014 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | SQ5 | SUV | 3.0L V6 Supercharged |