2008-2018 Audi A4/A5/Q5/S4/S5/SQ5, Porsche Macan Radiator 8K0121251AA
OEM Part #: 8K0-121-251-AA (8K0121251AA)
Actual photo
The exact part you’ll receive — not a stock photo.
$137.49
Used
Donor2014 Audi SQ5 · 3.0L
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Genuine OEM Used
SKU: 688044
Donor Vehicle: 2014 Audi SQ5 · 3.0L
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$137.49
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A used OEM Audi radiator with part number 8K0121251AA, also replacing 8K0121251Q and 8K0121251M. This genuine radiator was removed from a donor vehicle and cools the engine by circulating coolant through the core. Common failure signs include external leaks at the end tanks or core, and engine overheating. Fits various Audi and Porsche models equipped with 1.8T, 2.0T, 3.0 supercharged, 3.0 TDI, and 3.2L engines.
Specifications
| Fits Vehicle Model | A4, A5, Macan, Q5, S4, S5, SQ5 |
| Fits Vehicle Make | Audi, Porsche |
| OEM Part No | 8K0-121-251-AA (8K0121251AA) |
| Compatible OEM Part No | 8K0-121-251-Q, 8K0-121-251-M |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 48 vehicle configurations across 2 makes, 2008-2018.
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 48 vehicle configurations — 36 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2009 | Audi | Q5 | SUV | 3.2L V6 | For Automatic Transmission |
| 2012 | Audi | Q5 | SUV | 3.2L V6 | For Automatic Transmission |
| 2010 | Audi | Q5 | SUV | 3.2L V6 | For Automatic Transmission |
| 2011 | Audi | Q5 | SUV | 3.2L V6 | For Automatic Transmission |
| 2015 | Porsche | Macan | S SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2016 | Porsche | Macan | S SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2017 | Porsche | Macan | S SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2017 | Porsche | Macan | GTS SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2018 | Porsche | Macan | GTS SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2018 | Porsche | Macan | S SUV | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CTM, CTMA |
| 2015 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles With Production date Up To 12/15/14 |
| 2016 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | |
| 2016 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | |
| 2010 | Audi | A5 | Quattro Coupe | 3.2L V6 | For Automatic Transmission |
| 2009 | Audi | A4 | Quattro Sedan | 3.2L V6 | For Automatic Transmission |
| 2009 | Audi | A5 | Quattro Coupe | 3.2L V6 | For Automatic Transmission |
| 2017 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2008 | Audi | A5 | Quattro Coupe | 3.2L V6 | For Automatic Transmission |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission |
| 2017 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2014 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2014 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles With Production date Up To 12/15/14 |
| 2010 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2011 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2012 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles With Production date Up To 12/15/14 |
| 2013 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2013 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles With Production date Up To 12/15/14 |
| 2014 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles With Production date Up To 12/15/14 |
| 2014 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles With Production date Up To 12/15/14 |
| 2015 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2012 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles with Engine Code(s) CAKA, CCBA |
| 2011 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles with Engine Code(s) CAKA, CCBA |
| 2010 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Automatic Transmission; For Vehicles with Engine Code(s) CAKA, CCBA |