Audi / Volkswagen Brake Master Cylinder 4D0611021A
OEM Part #: 4D0-611-021-A (4D0611021A)
This page covers one exact OEM part number. Every unit we stocked has sold.
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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 Brake Master Cylinder that may fit your vehicle
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Directly sourced from salvage vehicles, this OEM Brake Master Cylinder (Part Number: 4D0611021A) is compatible with various Audi and Volkswagen models, ensuring a precise fit for optimal performance. It is designed for 1997-2003 Audi A8, 1999-2002 Audi A4, 2001 Audi S4, and Volkswagen Passat models from 1999 to 2002, covering engines from 1.8L L4 to 4.2L V8. This factory-original part is crucial for maintaining proper brake system functionality, resolving issues related to worn or damaged master cylinders. Alternative names include Master Cylinder, ensuring you get the right replacement. Enhance your vehicle's safety and efficiency with this reliable, genuine part.
For vehicles with EDL (Electronic Differential Lock) .
Specifications
| Fits Vehicle Model | A4, A6, A8, Passat, S4, S8 |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 4D0-611-021-A (4D0611021A) |
| Compatible OEM Part No | 4D0-611-021 |
| Category | Master Cylinder |
Compatible Vehicles
Fits 66 vehicle configurations across 2 makes, 1997-2002.
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 66 vehicle configurations — 26 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1997 | Audi | A8 | Sedan | 3.7L V8 | |
| 1997 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 1998 | Audi | A8 | Sedan | 3.7L V8 | |
| 1998 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 1999 | Audi | A4 | Sedan | 2.8L V6 | |
| 1999 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 1999 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 1999 | Audi | A6 | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |
| 1999 | Audi | A6 | Quattro Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |
| 1999 | Audi | A6 | Quattro Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 120001 |
| 1999 | Audi | A8 | Sedan | 3.7L V8 | |
| 1999 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2000 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2000 | Audi | A4 | Sedan | 2.8L V6 | |
| 2000 | Audi | A4 | Quattro Wagon | 1.8L l4 Turbo | |
| 2000 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 2000 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2000 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2000 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Option Code(s) 1AH |
| 2000 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Option Code(s) 1AH |
| 2000 | Audi | S4 | Sedan | 2.7L V6 Turbo | |
| 2001 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2001 | Audi | A4 | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Sedan | 1.8L l4 Turbo | |
| 2001 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2001 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 020000; For Vehicles with Option Code(s) 1AH |
| 2001 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 020000; For Vehicles with Option Code(s) 1AH |
| 2001 | Audi | S4 | Wagon | 2.7L V6 Turbo | |
| 2001 | Audi | S4 | Sedan | 2.7L V6 Turbo | |
| 2001 | Audi | S8 | Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 020000; For Vehicles with Option Code(s) 1AH |
| 2002 | Audi | S4 | Wagon | 2.7L V6 Turbo | |
| 2002 | Audi | S4 | Sedan | 2.7L V6 Turbo | |
| 1999 | Volkswagen | Passat | Sedan | 1.8L l4 Turbo | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 491581 |
| 1999 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 491581 |
| 1999 | Volkswagen | Passat | Wagon | 1.8L l4 Turbo | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 491581 |
| 1999 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 491581 |
| 2000 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Sedan | 1.8L l4 Turbo | |
| 2000 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Wagon | 1.8L l4 Turbo | |
| 2000 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2001 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2001 | Volkswagen | Passat | Sedan | 1.8L l4 Turbo | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2001 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2001 | Volkswagen | Passat | Wagon | 1.8L l4 Turbo | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2001 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Sedan | 1.8L l4 Turbo | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Wagon | 1.8L l4 Turbo | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Sedan | 4.0L W8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |
| 2002 | Volkswagen | Passat | Wagon | 4.0L W8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 010026; For Vehicles with Option Code(s) (1AH OR 1AJ) |