Audi A4/A5/A6/Q3/Q5/allroad Radiator 8K0121251AG
OEM Part #: 8K0-121-251-AG (8K0121251AG)
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 Radiator that may fit your vehicle
Auxiliary / Secondary Radiator
$112.49
Fits 2012–2018 Audi
OEM: 4G0121212
Radiator
$99.99
Fits 2009–2017 Audi
OEM: 8K0121251T
Radiator
$99.99
Fits 2009–2017 Audi
OEM: 8K0121251K
Radiator
$132.49
Fits 2017–2026 Audi
OEM: 8MK376990
Radiator
$135.49
Fits 2017–2024 Audi
OEM: 8W0121251AK
Radiator
$71.49
Fits 2009–2017 Audi
OEM: 8K0121251AJ
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | A4, A5, A6, allroad, Q3, Q5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8K0-121-251-AG (8K0121251AG) |
| Compatible OEM Part No | 8K0-121-251-AC |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 40 vehicle configurations across 1 make, 2013-2018.
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 40 vehicle configurations — 28 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2013 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2013 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2013 | Audi | A5 | Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2013 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2013 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2013 | Audi | allroad | Wagon | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2013 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCB, CNCD, CNCE |
| 2014 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2014 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2014 | Audi | A5 | Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2014 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2014 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2014 | Audi | allroad | Wagon | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2014 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCB, CNCD, CNCE |
| 2015 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2015 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2015 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2015 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2015 | Audi | allroad | Wagon | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2015 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCB, CNCD, CNCE |
| 2016 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2016 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2016 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2016 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2016 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | allroad | Wagon | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD |
| 2016 | Audi | Q3 | SUV | 2.0L l4 Turbo | |
| 2016 | Audi | Q3 | Quattro SUV | 2.0L l4 Turbo | |
| 2016 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCB, CNCD, CNCE |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCD, CNCE |
| 2017 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | Q3 | SUV | 2.0L l4 Turbo | |
| 2017 | Audi | Q3 | Quattro SUV | 2.0L l4 Turbo | |
| 2017 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Manual Transmission; For Vehicles with Production Date After 09/23/13; For Vehicles with Engine Code(s) CNCB, CNCD, CNCE |
| 2018 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | Q3 | SUV | 2.0L l4 Turbo | |
| 2018 | Audi | Q3 | Quattro SUV | 2.0L l4 Turbo |