2007-2015 Audi Q7/R8 Horn - Low Tone / Frequency 4L0951221A
OEM Part #: 4L0-951-221-A (4L0951221A)
Actual photo
The exact part you’ll receive — not a stock photo.
$9.49
Used
Donor2010 Audi Q7 · 3.0L
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4 Available — Select Your Part:
Genuine OEM Used
SKU: 564216
Donor Vehicle: 2010 Audi Q7 · 3.0L
4 photos
TESTED. HAS SEVERAL COSMETIC CRACKS, SEE PICTURES
$9.49
30-Day Returns
Genuine OEM Used
SKU: 605623
Donor Vehicle: 2013 Audi Q7 · 3.0L
2 photos
$10.49
30-Day Returns
Genuine OEM Used
SKU: 570606
Donor Vehicle: 2012 Audi R8 · 4.2L · 41k miles
3 photos
TESTED
$10.49
30-Day Returns
Genuine OEM Used
SKU: 609679
Donor Vehicle: 2015 Audi Q7 · 3.0L
2 photos
TESTED
$10.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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This used OEM Audi horn, part number 4L0951221A, is the low-tone/frequency unit from a donor vehicle. It also replaces 4L0951221 and 4LD951221. The horn produces the deeper warning sound; a failing one often sounds weak or silent.
Specifications
| Fits Vehicle Model | Q7, R8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4L0-951-221-A (4L0951221A) |
| Compatible OEM Part No | 4L0-951-221, 4LD-951-221 |
| Category | Siren / Horn |
Compatible Vehicles
Fits 43 vehicle configurations across 1 make, 2007-2015.
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 43 vehicle configurations — 9 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2011 | Audi | R8 | Coupe | 5.2L V10 | |
| 2010 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | GT Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | Coupe | 5.2L V10 | |
| 2011 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2012 | Audi | R8 | GT Spyder Convertible | 5.2L V10 | |
| 2012 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2009 | Audi | R8 | Coupe | 5.2L V10 | |
| 2015 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | For Vehicles with Production Date After 01/24/11 |
| 2015 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2009 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2008 | Audi | Q7 | SUV | 3.6L V6 | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2011 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2010 | Audi | Q7 | SUV | 3.6L V6 | For Vehicles With Production date Up To 01/24/11 |
| 2012 | Audi | R8 | Coupe | 4.2L V8 | |
| 2012 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2010 | Audi | Q7 | SUV | 4.2L V8 | For Vehicles With Production date Up To 01/24/11 |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 01/24/11 |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | For Vehicles with Production Date After 01/24/11 |
| 2009 | Audi | Q7 | SUV | 3.6L V6 | |
| 2007 | Audi | Q7 | SUV | 4.2L V8 | |
| 2007 | Audi | Q7 | SUV | 3.6L V6 | |
| 2008 | Audi | R8 | Coupe | 4.2L V8 | |
| 2009 | Audi | Q7 | SUV | 4.2L V8 | |
| 2008 | Audi | Q7 | SUV | 4.2L V8 | |
| 2010 | Audi | R8 | Coupe | 4.2L V8 | |
| 2010 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | For Vehicles With Production date Up To 01/24/11 |
| 2011 | Audi | R8 | Coupe | 4.2L V8 | |
| 2009 | Audi | R8 | Coupe | 4.2L V8 | |
| 2015 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2015 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 01/24/11 |
| 2015 | Audi | R8 | Coupe | 4.2L V8 | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Supercharged | For Vehicles with Production Date After 01/24/11 |
| 2014 | Audi | R8 | Coupe | 4.2L V8 | |
| 2014 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | For Vehicles with Production Date After 01/24/11 |
| 2014 | Audi | R8 | Coupe | 5.2L V10 | |
| 2014 | Audi | R8 | Spyder Convertible | 5.2L V10 |