Master Cylinder Caps
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Master Cylinder Caps Master Cylinder Caps
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Dorman - Help Master Cylinder Caps

Part No. 42046 Warranty Details  

See if this part fits a specific vehicle.

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Our Brake Master Cylinder Caps are engineered for affordability and convenience. Save time, money and labor by replacing only the Cap, instead of the entire Brake Master Cylinder.

Product Features:
  • Constructed of high-quality plastic for lasting durability
  • Available in diverse styles, including threaded and locking
  • Protects braking system by providing a tight seal against the elements
  • A necessary safety item—prevents brake fluid from splashing and/or leaking
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by PowerReviews
Dorman - HelpMaster Cylinder Caps

(based on 1 review)

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Reviewed by 1 customer

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works as planned


from Windermer, Fl

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3 or more reviews submitted


  • Easy To Install


    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Dorman - Help Master Cylinder Caps:

    Replace every 75,000 miles for better master cylinder seal.

    Comment on this reviewHelp Icon

    Do you have questions about this product?


    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

    5 Questions | 5 Answers
    Displaying questions 1-5
    • Q:

      Does this cap come with the gasket to seal the master cylinder?
      Asked on 5/17/2014 by Cwajciec

      1 answer



        Hi Cwajciec, glad to assist you! This part does not include the gasket.

        Answered on 5/17/2014 by Steve from AAP
    • Q:

      Would this part fit a 1991 Chevrolet s10? I previously ordered a master cylinder cap and recieved a large rectangular cap. I am looking for a small round cap like this one. Would do you know if what I am looking for is the master brake cylinder cap or the clutch slave cylinder reservoir?
      Asked on 6/22/2011 by ei120 from austin, tx

      1 answer



        No, this part does not fit your 1991 Chevrolet S10.

        Answered on 6/28/2011 by Vincent from AAP
    • Q:

      would this fit a 1996 nissan maxima
      Asked on 3/10/2011 by dro from paterson, nj

      1 answer



        No, this part does not fit your 1996 Nissan/Datsun Maxima.

        Answered on 3/12/2011 by Parts Guru Geo from AAP
    • Q:

      will this work for 04 isuzu rodeo?
      Asked on 8/29/2010 by Anonymous

      1 answer



        No, this is for Ford vehicles.

        Answered on 8/29/2010 by Mike from AAP
    • Q:

      I would like to know if this cap will fit on my 1993 nissan quest?
      Thanks for your help!
      Asked on 8/12/2010 by gus

      1 answer



        no this cap will not fit your nissan quest.

        Answered on 8/12/2010 by luz from aap
    Displaying questions 1-5

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