2011-2012 Audi A8 Lower Radiator Coolant Hose / Line 4H0121055AA
OEM Part #: 4H0-121-055-AA (4H0121055AA)
Actual photo
The exact part you’ll receive — not a stock photo.
$15.49
Used
Donor2011 Audi A8 · 4.2L
✓ Free Same Day Shipping on orders by noon CT
Only 2 in stock — no guaranteed restock
Genuine OEM Used
SKU: 291551
Donor Vehicle: 2011 Audi A8 · 4.2L
2 photos
$15.49
30-Day Returns
Genuine OEM Used
SKU: 445962
Donor Vehicle: 2011 Audi A8 · 4.2L · 64k miles
2 photos
$20.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
This used OEM Audi lower radiator coolant hose / line (part number 4H0121055AA) is a direct fit for the 4.2L V8 in the A8 Quattro. Also called the lower radiator hose, it carries engine coolant to the radiator; failure typically causes a visible leak and possible overheating.
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-121-055-AA (4H0121055AA) |
| 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 |