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Dorman 42046 Brake Master Cylinder Cap

Free shipping on orders over $29.99

$9.95

$ 4 .99 $4.99

In Stock

About this item

  • Product Type:Auto Part
  • Item Package Weight:0.022 Pounds
  • Item Package Dimension:7.111 cm L X7.62 cm W X3.048 cm H
  • Country Of Origin: China


People's lives and livelihoods depend upon cars and trucks. Dorman gives people greater freedom to fix these vehicles by constantly developing new repair solutions that put owners and installers first. Since 1918, we have been the automotive aftermarket’s pioneering problem solvers. We have released thousands of parts and components that people could once only buy from original equipment manufacturers. By always innovating, we have led the way in growing the aftermarket, providing more opportunity to individuals and businesses who depend on automotive maintenance. That’s why our catalog includes more than 118,000 products and grows every year. What makes us distinct from other aftermarket companies is our customer-first mindset. Everything we do is centered around providing customer value, both in the quality of our products, and the creativity of our solutions. Our engineers and designers go out of their way to save repair technicians time, and save vehicle owners money. The engine that powers us is our Culture of Contribution. We empower and celebrate new ideas throughout our organization, because that just means we have more ways to solve problems. Our family-run roots give us a spirit of entrepreneurship that accelerates our speed and agility. This is a rare combination in a fast-growing, global enterprise that makes Dorman a special place to work.


Holly K
September 4, 2025
My brother somehow lost the cap to his brake fluid reservoir and needed a replacement. This fit perfectly. I double checked the item number through Auto Zone just to make sure it would fit and it did.
Keyasia
June 20, 2025
It fits on there good 🙏
MynameisMiked
June 15, 2025
Bought a 2008 CVPI as a project/parts car for a hot rod truck project. The factory cover was cracked. This went right on. Does the job so far.
alan rush
May 26, 2025
It would not secure down on my 2002 F150 power steering reservoir.
Misty White
April 30, 2025
Great quality. Easy installation. Will buy again if needed
Elizabeth L McCray
March 23, 2025
This fit my husband's F250 perfect and the cost was great!
Michelle Corner
February 26, 2025
Price and fit.
Aaron Brown
December 18, 2024
Shocking how bad this product is when compared to original. Poor fit, missing gasket will lead to fluid leaks. Avoid!
The Dude
December 14, 2024
Apparently it's only the plastic cap with no gasket. Would have been nice to know when ordering.