2011-2012 Audi A8 Coolant Hose / Line Rear 4H0121081AG
OEM Part #: 4H0-121-081-AG (4H0121081AG)
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 Coolant Hose / Pipe / Line that may fit your vehicle
Coolant Flange / Adapter
Starting at $6.99
Fits 2006–2025 Audi & Volkswagen
OEM: N906929
Coolant Hose / Line
$7.49
Fits 2012–2016 Audi A8 / S8
OEM: 4H0121448L
Coolant Hose / Line
$14.99
Fits 2011–2018 Audi A8 / S8
OEM: 4H0121449N
Coolant Pipe / Tube / Line
$75.49
Fits 2012–2018 Audi A8
OEM: 4H0121034G
Coolant Reservoir Tank Hose
$7.21
Fits 2012–2018 Audi A8 / S8
OEM: 4H0121109C
Coolant Return Hose / Line
$14.49
Fits 2011–2014 Audi A8 / S8
OEM: 4H1819672P
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-121-081-AG (4H0121081AG) |
| Side | Rear |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 4 vehicle configurations across 1 make, 2011-2012.
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 4 vehicle configurations — 4 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2011 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) CDRA |
| 2011 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) CDRA |
| 2012 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) CDRA |
| 2012 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) CDRA |