SKP SK603642 Brake Master Cylinder Reservoir

Brand SKP SK603642
Fits Audi and Volkswagen · 102 vehicles

Direct-fit replacement. Matches the brake master cylinder reservoir application listed for exact fitment matching.

Application-specific fitment. Covers multiple Audi and Volkswagen brake hydraulic configurations with breakpoint notes.

Part number SK603642. Easy reference when matching the correct brake reservoir for service work.

Cross-references Dorman - OE Solutions 603-642, 8E0 611 301 and 605-3649-1 for the same application. See all 3.

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Brake Master Cylinder Reservoir for Audi and Volkswagen

The SKP SK603642 brake master cylinder reservoir is a direct-fit replacement for a wide range of Audi and Volkswagen brake hydraulic applications. It is built for vehicles that require the correct reservoir style and fitment details listed below, including models with specific production breakpoints and notes.

Key Features

  • Direct-fit brake master cylinder reservoir for brake hydraulic service.
  • Fits multiple Audi A4, A6, S4, 80, 90, 100, 200, Cabriolet, and 5000 applications.
  • Also fits Volkswagen Passat applications listed in the fitment data.
  • Application-specific notes include w/o retaining bolt, w/ accumulator, and traction control exclusions where required.
  • SK603642 part number for easy identification during replacement matching.

Detailed Description

SK603642 is a brake master cylinder reservoir intended for Audi and Volkswagen vehicles with the exact fitment shown in the application table. Coverage includes Audi A4 and A4 Quattro, A6 and A6 Quattro, S4, 80 and 80 Quattro, 90 and 90 Quattro, 100 and 100 Quattro, 200 and 200 Quattro, Cabriolet, and 5000/5000 Quattro, plus Volkswagen Passat models. Because the fitment includes production breakpoints and configuration notes, matching the original reservoir style is important for proper brake hydraulic service. This part cross-references Dorman - OE Solutions 603-642 for the same application.

What This Part Is Used For

  • Replacing a cracked or leaking brake fluid reservoir.
  • Restoring proper brake fluid storage at the master cylinder.
  • Addressing fitment issues caused by incorrect reservoir style or mounting details.
  • Supporting brake hydraulic repairs on older Audi and Volkswagen platforms.

Installation Notes and Tips

Verify the vehicle’s production breakpoint and configuration notes before ordering. Several applications require attention to retaining bolt, accumulator, traction control, or electronic differential details. Confirm the reservoir matches the original brake master cylinder setup on the vehicle before installation.

Quality Assurance

SKP replacement parts are cataloged for application-specific fitment matching. Use the listed vehicle notes and part number SK603642 to confirm the correct reservoir for the brake system service.

This part fits 102 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeNotes
2002AudiA4 Quattrow/o Retaining Bolt; To 8D-1-200 000
2002AudiS4To 8D-2-010 000; w/o Retaining Bolt
2001AudiA4w/o Retaining Bolt; To 8D-1-200 000
2001AudiA4 Quattrow/o Retaining Bolt
2001AudiA4 Quattrow/o Retaining Bolt; To 8D-1-200 000
2001AudiA6To 4B-X-120 000
2001AudiA6 QuattroTo 4B-X-120 000
2001AudiS4w/o Retaining Bolt
2001VolkswagenPassatFWDTo 3B-X-491 580
2001VolkswagenPassatAWDTo 3B-X-491 580
2000AudiA4From 8D-X-200 001; w/o Retaining Bolt
2000AudiA4 Quattrow/o Retaining Bolt
2000AudiA6To 4B-X-120 000
2000AudiA6 QuattroTo 4B-X-120 000
2000AudiS4w/o Retaining Bolt
2000VolkswagenPassatFWDTo 3B-X-491 580
2000VolkswagenPassatAWDTo 3B-X-491 580
2000VolkswagenPassatFWDTo 3B-X-600 000
1999AudiA4To 8D-X-199 999
1999AudiA4From 8D-X-200 001; w/o Retaining Bolt
1999AudiA4 Quattrow/o Retaining Bolt
1999AudiA6To 4B-X-120 000
1999AudiA6 QuattroTo 4B-X-120 000
1999VolkswagenPassatAWDTo 3B-X-491 580
1999VolkswagenPassatFWDTo 3B-X-491 580
1999VolkswagenPassatFWDTo 3B-X-600 000
1998AudiA4
1998AudiA4 Quattro
1998AudiA4 Quattrow/o Retaining Bolt
1998AudiA6To 4B-X-120 000
1998AudiA6 QuattroFrom 4B-W-000 001; To 4B-X-120 000
1998AudiA6 QuattroTo 4B-X-120 000
1998AudiCabrioletExc. Traction Control
1998VolkswagenPassatFWDTo 3B-X-491 580
1997AudiA4
1997AudiA4 Quattro
1997AudiA6
1997AudiA6 Quattro
1997AudiCabrioletExc. Traction Control
1997VolkswagenPassatFWDTo 3B-X-600 000
1996AudiA4
1996AudiA4 Quattro
1996AudiA6
1996AudiA6 Quattro
1996AudiCabrioletExc. Traction Control
1995Audi90
1995Audi90 Quattro
1995AudiA6w/o Electronic Differential
1995AudiA6 Quattro
1995AudiCabrioletExc. Traction Control
1994Audi100
1994Audi100 Quattro
1994Audi90
1994Audi90 Quattro
1994AudiCabrioletExc. Traction Control
1993Audi100
1993Audi100 Quattro
1993Audi90
1993Audi90 Quattro
1992Audi100
1992Audi100 Quattro
1992Audi80
1992Audi80 Quattro
1992Audi90 Quattro
1991Audi100
1991Audi100 QuattroFrom 44-K-006 001
1991Audi200
1991Audi200 Quattro
1991Audi80
1991Audi80 Quattro
1991Audi90
1991Audi90 Quattro
1991AudiCoupe Quattro
1990Audi100
1990Audi100 QuattroFrom 44-K-006 001
1990Audi200
1990Audi200 Quattro
1990Audi80
1990Audi80 Quattro
1990Audi90
1990Audi90 Quattro
1990AudiCoupe Quattro
1989Audi100From 44-K-000 001
1989Audi100 QuattroFrom 44-K-006 001
1989Audi200
1989Audi200 Quattro
1989Audi80
1989Audi80 Quattro
1989Audi90
1989Audi90 Quattro
1988Audi5000w/ Accumulator
1988Audi5000 Quattrow/ Accumulator
1988Audi80
1988Audi80 Quattro
1988Audi90
1988Audi90 Quattro
1987Audi5000w/ Accumulator
1987Audi5000 Quattrow/ Accumulator
1986Audi5000w/ Accumulator
1986Audi5000 Quattrow/ Accumulator
1985Audi5000w/ Accumulator
1984Audi5000w/ Accumulator
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 603-6428E0 611 301605-3649-1