Dorman - HELP Brake Master Cylinder Reservoir Cap Gasket P/N:42069

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$24.99
MPN: 42069
Item Package Quantity: 1
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Dorman - HELP Brake Master Cylinder Reservoir Cap Gasket P/N:42069
Dorman - HELP Brake Master Cylinder Reservoir Cap Gasket P/N:42069
$24.99

Seal the top of your brake master cylinder reservoir and help keep moisture and road grime out of the brake fluid with the Dorman - HELP Brake Master Cylinder Reservoir Cap Gasket 42069. It fits under the reservoir cap as a direct-fit replacement for a long list of classic Ford, Lincoln, and Mercury vehicles — including the 1967-1975 Ford Bronco, 1967-1972 Ford LTD, 1967-1971 and 1979-1986 Ford Mustang, 1975-1982 Ford Granada, 1968-1972 Lincoln Continental, and 1980-1986 Mercury Cougar. See the Buyer's Guide tab for the full list of 45 applications.

  • What it does: the gasket seats between the master cylinder reservoir and its cap to seal the brake-fluid chamber.
  • Keeps contamination out: helps limit moisture and debris from entering the reservoir, since brake fluid absorbs water over time.
  • Direct replacement: installs in place of the original gasket during routine brake-fluid service.

Signs this part may need replacing: brake fluid weeping around the cap, a swollen or hardened original gasket, or fluid seepage at the reservoir top. If a worn cap gasket is the cause, this replaces it.

Interchange: C7AZ2167B · D1FZ2167A · D1FZ2167B · 420694 · C7AZ-2167-B. Manufacturer part number 42069.

This part cross-references / interchanges with the following part numbers:

C7AZ2167B, D1FZ2167A, D1FZ2167B, 420694, C7AZ-2167-B

Frequently Asked Questions

What does this gasket do?

It seats between the brake master cylinder reservoir and its cap to seal the fluid chamber, helping keep moisture and debris out of the brake fluid.

What vehicles does the 42069 fit?

It fits 45 classic Ford, Lincoln, and Mercury applications, such as the 1967-1975 Ford Bronco, 1967-1971 and 1979-1986 Ford Mustang, and 1980-1986 Mercury Cougar. Check the Buyer's Guide tab for the complete list.

How do I know if I need a new cap gasket?

Look for brake fluid weeping around the reservoir cap or a swollen, hardened original gasket. If a worn gasket is the cause of the seepage, this replaces it.

What part numbers does this interchange with?

It interchanges with C7AZ2167B, D1FZ2167A, D1FZ2167B, 420694, and C7AZ-2167-B. Its own manufacturer part number is 42069.

Is this just the gasket?

Yes, this listing is for the reservoir cap gasket only. It replaces the original gasket during routine brake-fluid service.