HomeBrake > Gaskets and Sealing SystemsDorman 42080 Brake Master Cylinder Reservoir Cap Gasket
Part #: 42080

Dorman 42080 Brake Master Cylinder Reservoir Cap Gasket

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36 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lincoln, Ford, and Mercury, Town Car, Country Squire, LTD Crown Victoria, Colony Park, Grand Marquis, LTD, Mark VI, Marquis, and Continental
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Brake Master Cylinder Reservoir Cap Gasket for Ford and Lincoln

Dorman 42080 is a rubber brake master cylinder reservoir cap gasket made to match the fit and function of the original gasket on specified vehicles. It is built for durable sealing performance in brake master cylinder reservoir applications, including classic Ford, Mercury, and Lincoln models.

Key Features

  • Rubber construction for sealing at the brake master cylinder reservoir cap
  • OE-style fit and function for specified applications
  • Engineered for durable, reliable performance
  • Direct replacement for the original gasket on listed vehicles
  • Part number 42080 for easy identification

Detailed Description

This Dorman brake master cylinder reservoir cap gasket is designed for vehicles that need a precise sealing surface at the reservoir cap. It helps maintain the integrity of the brake fluid reservoir by replacing a worn, hardened, or damaged gasket with a part shaped for the original application. Compatible With 1982-1989 Lincoln Town Car, 1987 Ford LTD Crown Victoria, 1987 Mercury Colony Park, 1979-1987 Mercury Grand Marquis, 1979-1986 Ford LTD, 1980-1983 Lincoln Mark VI, 1979-1982 Mercury Marquis, and 1980 Lincoln Continental. This part cross-references Ford/Mercury/Lincoln OE number D9AZ-2167-A for the same application. Dorman 42080 is a practical replacement for brake service on older Ford, Mercury, and Lincoln platforms where reservoir sealing matters.

Common Issues This Part May Address

  • Brake fluid seepage around the master cylinder reservoir cap
  • Cracked, flattened, or hardened original gasket material
  • Loss of sealing at the brake fluid reservoir opening
  • Contamination entering the reservoir through a poor cap seal
  • Service concerns during brake master cylinder maintenance

Installation Notes and Tips

Inspect the reservoir cap and master cylinder sealing surface before installation. Clean away old fluid residue, dirt, and gasket material so the new rubber gasket seats evenly. Verify the application against the vehicle listing for your Ford LTD, Mercury Grand Marquis, or Lincoln Town Car before installation.

Quality Assurance

Dorman designs this gasket to match the original fit and function on specified vehicles and to deliver dependable sealing performance in brake system service.

BrandDorman
Part Number42080
MaterialRubber
Package Contents1 Brake Master Cylinder Gasket

This part fits 36 vehicles. Search below:

YearMakeModelPositionNotes
1989LincolnTown CarN/A
1988LincolnTown CarN/A
1987FordLTD Crown VictoriaN/A
1987LincolnTown CarN/A
1987MercuryColony ParkN/A
1987MercuryGrand MarquisN/A
1986FordLTDN/A
1986LincolnTown CarN/A
1986MercuryGrand MarquisN/A
1985FordLTDN/A
1985LincolnTown CarN/A
1985MercuryGrand MarquisN/A
1984FordLTDN/A
1984LincolnTown CarN/A
1984MercuryGrand MarquisN/A
1983FordLTDN/A
1983LincolnMark VIN/A
1983LincolnTown CarN/A
1983MercuryGrand MarquisN/A
1982FordLTDN/A
1982LincolnMark VIN/A
1982LincolnTown CarN/A
1982MercuryGrand MarquisN/A
1982MercuryMarquisN/A
1981FordLTDN/A
1981LincolnMark VIN/A
1981MercuryGrand MarquisN/A
1981MercuryMarquisN/A
1980FordLTDN/A
1980LincolnContinentalN/A
1980LincolnMark VIN/A
1980MercuryGrand MarquisN/A
1980MercuryMarquisN/A
1979FordLTDN/A
1979MercuryGrand MarquisN/A
1979MercuryMarquisN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

D9AZ-2167-AD9AZ2167A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.