2004-2015 Audi A8/R8/S8, Volkswagen Phaeton Brake Master Cylinder 3D0611021
OEM Part #: 3D0-611-021 (3D0611021)
Actual photo
The exact part you’ll receive — not a stock photo.
$79.99
Used
Donor2005 Audi A8 · 6.0L
✓ Free Same Day Shipping on orders by noon CT
Only 1 in stock — no guaranteed restock
Genuine OEM Used
SKU: 681555
Donor Vehicle: 2005 Audi A8 · 6.0L
2 photos
$79.99
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
A used genuine OEM Audi R8 brake master cylinder, part number 3D0611021, sourced from a donor vehicle. This cylinder converts pedal force into hydraulic pressure to engage the brakes. A failing unit often causes a soft or sinking pedal or visible brake fluid leaks. It's also found in the Audi A8, S8, and Volkswagen Phaeton with 4.2L V8, 5.2L V10, or 6.0L W12 naturally aspirated engines.
Specifications
| Fits Vehicle Model | A8, Phaeton, R8, S8 |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 3D0-611-021 (3D0611021) |
| Category | Master Cylinder |
Compatible Vehicles
Fits 50 vehicle configurations across 2 makes, 2004-2015.
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 50 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2011 | Audi | R8 | Coupe | 5.2L V10 | |
| 2010 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | GT Coupe | 5.2L V10 | |
| 2009 | Audi | R8 | Coupe | 5.2L V10 | |
| 2012 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2011 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2015 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2015 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2015 | Audi | R8 | Coupe | 5.2L V10 | |
| 2015 | Audi | R8 | Coupe | 4.2L V8 | |
| 2012 | Audi | R8 | GT Spyder Convertible | 5.2L V10 | |
| 2004 | Volkswagen | Phaeton | Sedan | 6.0L W12 | |
| 2005 | Volkswagen | Phaeton | Sedan | 4.2L V8 | |
| 2009 | Audi | S8 | Sedan | 5.2L V10 | |
| 2007 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2006 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2006 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2008 | Audi | S8 | Sedan | 5.2L V10 | |
| 2008 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2008 | Audi | R8 | Coupe | 4.2L V8 | |
| 2008 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2006 | Volkswagen | Phaeton | Sedan | 6.0L W12 | |
| 2005 | Volkswagen | Phaeton | Sedan | 6.0L W12 | |
| 2005 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2007 | Audi | S8 | Sedan | 5.2L V10 | |
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2007 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2006 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2005 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2009 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2009 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2014 | Audi | R8 | Spyder Convertible | 5.2L V10 | |
| 2014 | Audi | R8 | Coupe | 5.2L V10 | |
| 2014 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2014 | Audi | R8 | Coupe | 4.2L V8 | |
| 2004 | Volkswagen | Phaeton | Sedan | 4.2L V8 | |
| 2012 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2012 | Audi | R8 | Coupe | 4.2L V8 | |
| 2008 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2011 | Audi | R8 | Spyder Convertible | 4.2L V8 | |
| 2011 | Audi | R8 | Coupe | 4.2L V8 | |
| 2010 | Audi | R8 | Coupe | 4.2L V8 | |
| 2010 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2010 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2009 | Audi | R8 | Coupe | 4.2L V8 | |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2009 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2006 | Volkswagen | Phaeton | Sedan | 4.2L V8 |