1998-2005 Audi / Volkswagen Brake Master Cylinder 4D0611021B

OEM Part #: 4D0-611-021-B (4D0611021B)

$58.99
Used
Donor2001 Audi ALLROAD · 2.7L
SKU: 688373 · 30-Day Returns
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Brake Master Cylinder 4D0611021B — Used (SKU 688373)
Genuine OEM Used SKU: 688373 Donor Vehicle: 2001 Audi ALLROAD · 2.7L 3 photos
$58.99
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A used OEM Audi brake master cylinder, part number 4D0611021B, is a genuine factory component from a donor vehicle. This master cylinder converts pedal force into hydraulic pressure to actuate the calipers, and a common failure symptom is a soft or spongy brake pedal that sinks to the floor. It serves models including the A4 Quattro, A6 Quattro, A8 Quattro, Allroad Quattro, S4, S8, and Volkswagen Passat, with engine options from the 1.8L turbo four to the 4.2L V8.

For vehicles with ESP (Electronic Stability Program)

Specifications

Specifications for Brake Master Cylinder 4D0611021B
Fits Vehicle ModelA4, A6, A8, Allroad, Passat, S4, S8
Fits Vehicle MakeAudi, Volkswagen
OEM Part No4D0-611-021-B (4D0611021B)
CategoryMaster Cylinder

Compatible Vehicles

Fits 51 vehicle configurations across 2 makes, 1998-2005.

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.

Audi

  • A4 1999-2001 · 8 variants 8 with notes
  • A6 1998-2001 · 11 variants 11 with notes
  • A8 2000-2002 · 6 variants 4 with notes
  • Allroad 2001-2005 · 6 variants
  • S4 2000-2002 · 5 variants 5 with notes
  • S8 2001 1 with note

Volkswagen

  • Passat 2001-2002 · 14 variants 14 with notes
View all 51 vehicle configurations — 43 with fitment notes
Full vehicle fitment list for Brake Master Cylinder 4D0611021B
Year Make Model Trim Engine Note
2001 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Option Code(s) 1AT
2002 Audi A8 Quattro Sedan 4.2L V8
2002 Audi A8 Quattro L Sedan 4.2L V8
2004 Audi Allroad Quattro Wagon 4.2L V8
2001 Audi A4 Quattro Sedan 1.8L l4 Turbo For Vehicles with ESP
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) 1AT
2000 Audi A4 Quattro Wagon 1.8L l4 Turbo For Vehicles with ESP
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) 1AT
2001 Volkswagen Passat 4 Wagon 2.8L V6 For Vehicles with Option Code(s) 1AT
2000 Audi A6 Quattro Sedan 2.7L V6 Turbo For Vehicles with ESP
2001 Audi A6 Quattro Sedan 2.7L V6 Turbo For Vehicles with ESP
1999 Audi A6 Quattro Sedan 2.8L V6 For Vehicles with ESP
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) 1AT
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) 1AT
2000 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with ESP
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) 1AT
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) 1AT
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) 1AT
2001 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with ESP
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) 1AT
2001 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with ESP
2000 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with ESP
2001 Volkswagen Passat Sedan 1.8L l4 Turbo For Vehicles with Option Code(s) 1AT
2001 Volkswagen Passat Wagon 1.8L l4 Turbo For Vehicles with Option Code(s) 1AT
2000 Audi A6 Quattro Sedan 2.8L V6 For Vehicles with ESP
2003 Audi Allroad Quattro Wagon 2.7L V6 Turbo
2000 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with ESP
1999 Audi A4 Quattro Wagon 2.8L V6 For Vehicles with ESP
2001 Volkswagen Passat Sedan 2.8L V6 For Vehicles with Option Code(s) 1AT
2000 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Option Code(s) 1AT
2001 Audi Allroad Quattro Wagon 2.7L V6 Turbo
2001 Audi A6 Quattro Sedan 4.2L V8 For Vehicles with ESP
2001 Audi S4 Wagon 2.7L V6 Turbo For Vehicles with ESP
2001 Volkswagen Passat 4 Sedan 2.8L V6 For Vehicles with Option Code(s) 1AT
2000 Audi S4 Sedan 2.7L V6 Turbo For Vehicles with ESP
2002 Audi Allroad Quattro Wagon 2.7L V6 Turbo
1998 Audi A6 Quattro Sedan 2.8L V6 For Vehicles with ESP
2001 Audi A6 Quattro Sedan 2.8L V6 For Vehicles with ESP
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) 1AT
2001 Volkswagen Passat Wagon 2.8L V6 For Vehicles with Option Code(s) 1AT
1999 Audi A4 Quattro Sedan 2.8L V6 For Vehicles with ESP
2001 Audi A6 Quattro Wagon 2.8L V6 For Vehicles with ESP
1999 Audi A6 Quattro Wagon 2.8L V6 For Vehicles with ESP
2001 Audi S4 Sedan 2.7L V6 Turbo For Vehicles with ESP
2005 Audi Allroad Quattro Wagon 4.2L V8
2004 Audi Allroad Quattro Wagon 2.7L V6 Turbo
2002 Audi S4 Sedan 2.7L V6 Turbo For Vehicles with ESP
2002 Audi S4 Wagon 2.7L V6 Turbo For Vehicles with ESP
2000 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Option Code(s) 1AT
2000 Audi A6 Quattro Wagon 2.8L V6 For Vehicles with ESP
2001 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Option Code(s) 1AT

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