2010-2015 Audi Q7 Lower Radiator Coolant Hose / Line 4L0121051B
OEM Part #: 4L0-121-051-B (4L0121051B)
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The exact part you’ll receive — not a stock photo.
$34.99
Used
Donor2014 Audi Q7 · 3.0L
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Genuine OEM Used
SKU: 659964
Donor Vehicle: 2014 Audi Q7 · 3.0L
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$34.99
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Audi’s 4L0121051B lower radiator coolant hose / line is a used genuine OEM part, also replacing 7L8121051H. This molded rubber hose routes coolant between the radiator and engine block on 3.0L V6 diesel and 3.0L V6 gas supercharged Audi Q7 models. When the hose cracks or its o-ring seal fails, coolant leaks can cause overheating. The line’s curved shape matches the factory routing.
Specifications
| Fits Vehicle Model | Q7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4L0-121-051-B (4L0121051B) |
| Compatible OEM Part No | 7L8-121-051-H |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 11 vehicle configurations across 1 make, 2010-2015.
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 11 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2010 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Supercharged |