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

Part No. 42041 Warranty Details  
Quantity  Add to Cart

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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, it prevents brake fluid from splashing and/or leaking
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by PowerReviews
Dorman - HelpMaster Cylinder Caps

(based on 2 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 1 Stars



Reviewed by 2 customers

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(1 of 1 customers found this review helpful)


Master Cylinder Cap by Dorman


from Oklahoma City, OK

About Me Casual Driver


  • Easy To Install
  • Lightweight


    Best Uses

    • Everyday Driving

    Comments about Dorman - Help Master Cylinder Caps:

    Clean and insert the rubber gasket into the cap. Place cap over master cylinder. Pull up one tab at a time as you press down on the cap. Repeat until all four tabs are snapped in tight.

    (0 of 1 customers found this review helpful)


    no good


    from Middletown, NY

    About Me Auto Enthusiast, Mechanic

    Verified Buyer


    • None


    • Could not make it snap on

    Best Uses

      Comments about Dorman - Help Master Cylinder Caps:

      Niether myself or two other mechanics could snap the cover on!!!

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      Do you have questions about this product?


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      1 Question | 1 Answer
      Displaying question 1
      • Q:

        what are the dimensions for this,because i actually want to get a chrome cover but don't know the right size
        Asked on 10/10/2011 by Anonymous

        1 answer



          The specification of the part: The outer edges measures about 4-3/8" x 6-3/4", It has about a 9/16" channel around the perimeter for the diaphragm, It's plastic and has 4 retaining ears.

          Answered on 10/10/2011 by Aaron from AAP
      Displaying question 1

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