Master Cylinder - New
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Master Cylinder - New Master Cylinder - New
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Carquest Wearever Master Cylinder - New

Part No. MCA39646 Warranty Details  
$48.99
Quantity  Add to Cart

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All master cylinders meet or exceed O.E. form, fit and function.
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Bleeder Kit Included:Yes
Brake Booster Included:No
Hardware Included:No
Master Cylinder Bore Diameter:1.13 in
Master Cylinder Cap Included:Yes
Master Cylinder Material:Aluminum
Mounting Hole Quantity:2
New Or Remanufactured:New
Pushrod Included:No
Reservoir Included:Yes

REVIEW SNAPSHOT®

by PowerReviews
Carquest WeareverMaster Cylinder - New
 
4.5

(based on 20 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Easy to install (17)
  • Decreased stopping distance (6)
  • No fade (5)
  • Lightweight (4)

Cons

No Cons

Best Uses

  • Everyday driving (12)
  • Replacement (11)
  • Restoration (3)
    • Reviewer Profile:
    • Mechanic (6), Auto enthusiast (4), Truck enthusiast (4)

Most Liked Positive Review

 

Good Product, but an incomplete kit

The master cylinder was ordered on line and arrived on the scheduled date. The master cylinder had bounced around in the box it came in even though it had been packed in an over-box...Read complete review

The master cylinder was ordered on line and arrived on the scheduled date. The master cylinder had bounced around in the box it came in even though it had been packed in an over-box including bubble wrap. It was assembled with some brake fluid in it which leaked out the cover due to the bouncing in shipment. Surprisingly, the nipples needed to bleed this master cylinder were not included with it and I had to search around to find a bleeding kit which added a day to the job. The bleeding procedure was simple and the master cylinder went into position with no problem and is working well. The only negative about the whole job was the lack of the bleed nipples, which was not mentioned in the catalog listing. Overall. I am satisfied with my purchase and would recommend it to a friend.

VS

Most Liked Negative Review

 

worst parts I have ever used

I wasted 2 hours, jackin with it. It is new, thought that would be the way to go after reading all of the bad reviews about the rebuilt ones. Not the case this...Read complete review

I wasted 2 hours, jackin with it. It is new, thought that would be the way to go after reading all of the bad reviews about the rebuilt ones. Not the case this is junk just
like all their parts. AAP, needs to rethink about using this company for parts, I'M returning this part and going up the
Street where I hope I can get parts that work. I've been burned for the last time. So long AAP.

Reviewed by 20 customers

Displaying reviews 1-10

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5.0

All Good

By 

from undisclosed

Verified Buyer

Comments about Carquest Wearever Master Cylinder - New:

Quick easy install, no problems at all. Hope it last as long as the original did.

 
5.0

Would buy again

By 

from undisclosed

Verified Buyer

Comments about Carquest Wearever Master Cylinder - New:

Great product

 
5.0

just what the doctor order

By 

from Watertown/NY

About Me Mechanic

See all my reviews

Ask me a question

Verified Buyer
3 or more reviews submitted

Pros

  • Decreased Stopping Distance
  • Easy To Install
  • Lightweight
  • No Fade

Cons

    Best Uses

    • Everyday Driving
    • Replacement
    • Restoration

    Comments about Carquest Wearever Master Cylinder - New:

    It was an easy install,works much smoother braking and keeps brake pads much cooler

     
    5.0

    exact fit, quick purge, great diagrams

    By 

    from Rome ga

    About Me Mechanic, OwnerOperator

    See all my reviews

    Verified Buyer

    Pros

    • Better Than Rebuilding
    • Decreased Stopping Distance
    • Easy To Install
    • No Fade

    Cons

    • Wasn't Preprimed

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement
    • Restoration

    Comments about Carquest Wearever Master Cylinder - New:

    Original master blew out the reservior seals and this beats rebuilding and wondering what will go wrong or getting a rebuilt and it fades because of a sloppy fix.
    Easy to follow directions and quick purge to prep the master for installation. no problems with fit or bad millings/connections. Would buy it again if I have to. Expect it to last another ten years.
    Quick and easy fix this time!!!

    (3 of 6 customers found this review helpful)

     
    5.0

    Works good

    By 

    from michigan

    About Me Mechanic

    See all my reviews

    Ask me a question

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Easy To Install

    Cons

      Best Uses

      • Everyday Driving

      Comments about Carquest Wearever Master Cylinder - New:

      Spend the money and buy new instead of rebuilt. Bench bleed and installed in under 30 minutes and works better than junk rebuilt one

      (3 of 3 customers found this review helpful)

       
      5.0

      Good Product, but an incomplete kit

      By 

      from Machipongo, VA

      About Me Auto Enthusiast

      See all my reviews

      Verified Buyer
      Helpful Reviewer

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Carquest Wearever Master Cylinder - New:

        The master cylinder was ordered on line and arrived on the scheduled date. The master cylinder had bounced around in the box it came in even though it had been packed in an over-box including bubble wrap. It was assembled with some brake fluid in it which leaked out the cover due to the bouncing in shipment. Surprisingly, the nipples needed to bleed this master cylinder were not included with it and I had to search around to find a bleeding kit which added a day to the job. The bleeding procedure was simple and the master cylinder went into position with no problem and is working well. The only negative about the whole job was the lack of the bleed nipples, which was not mentioned in the catalog listing. Overall. I am satisfied with my purchase and would recommend it to a friend.

        (1 of 1 customers found this review helpful)

         
        5.0

        good product .

        By 

        from celina oh

        About Me Auto Enthusiast

        Verified Buyer

        Pros

        • Easy To Install

        Cons

          Best Uses

          • Everyday Driving

          Comments about Carquest Wearever Master Cylinder - New:

          Great product. Was very easy to install.once it was benched bled there was not much air in the lines at all. Only took about 20 minutes to install and bled the lines. Would definitely buy again

          (10 of 22 customers found this review helpful)

           
          5.0

          Great product

          By 

          from Westville NJ

          About Me Casual Driver

          Verified Buyer
          Helpful Reviewer

          Pros

          • Easy To Install

          Cons

            Best Uses

            • Replacement

            Comments about Carquest Wearever Master Cylinder - New:

            My best friend was driving his truck and started hearing alot of air from the brake paddle area, so he called me to listen. I know it was between the master cylinder and the brake booster,so we started with the cylinder. It was easy to remove the one from the truck, we had to bench bleed the new one which was surprisingly easy to do. It was installed easy but that was not the problem. Yes it was the brake booster, yes we brought it, but that was a lot more work had to take out the steering column, we did it are I did it, yes that was the problem. I just wish all the stores had all the products, I had to drive to two stores about 15 miles apart.

            (9 of 21 customers found this review helpful)

             
            5.0

            good oem quality replacement part

            By 

            from portsmouth,ohio

            Verified Buyer

            Pros

            • Decreased Stopping Distance
            • Easy To Install
            • Lightweight
            • No Fade

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about Carquest Wearever Master Cylinder - New:

              good quality oem style master cylinder for the price of a re-manufactured can't beat that and was very easy install... the only bad thing is it didn't come with bleader screws to bench bleed but other than that was a easy install and a very good quality part for half the price of all of the other master cylinders. order online and pick up in stores there always running a promo code that makes it cheaper than just running to the store and picking it up... so over all I give it a 5/5 for quality and price

              (11 of 18 customers found this review helpful)

               
              5.0

              I, would buy this product again.

              By 

              from Battletown, Ky.

              About Me DIY

              Verified Buyer
              Helpful Reviewer

              Pros

              • Easy To Install

              Cons

              • None

              Best Uses

              • Replacement

              Comments about Carquest Wearever Master Cylinder - New:

              Remember to buy bleeder fitting's and tubes for bleeding master cylinder, these are not included.These are needed to bench bleed cylinder.

              Displaying reviews 1-10

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              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.

              4 Questions | 4 Answers
              Displaying questions 1-4
              • Q:

                Is this made in the USA.
                Asked on 5/9/2017 by Hendy from Louisville Ky.

                1 answer

                • CUSTOMER CARE

                  A:

                  Hi Hendy, glad to assist you! Advance Auto Parts does sell Made in the USA products as well as products manufactured from many other countries in order to keep our pricing competitive. Our suppliers have multiple manufacturing plants that could result in different countries of origin for the same part.

                  Answered on 5/10/2017 by Solomon from AAP
              • Q:

                I just bought this master cylinder and do not know what size the brake line fittings are? I need to buy a bleeder kit but do not know if it is metric or SAE.
                Asked on 9/5/2011 by Anonymous from Statesville, NC

                1 answer

                • CUSTOMER CARE

                  A:

                  The size of the brake lines that fit this master cylinder is ½ inch /20 and 9 16/18 inch and it is SAE.

                  Answered on 9/7/2011 by Dennis from AAP
              • Q:

                Is this new or rebuilt?
                Asked on 12/16/2010 by Anonymous

                1 answer

                • CUSTOMER CARE

                  A:

                  New

                  Answered on 12/17/2010 by Mike the Auto Parts Master from AAP
              • Q:

                What size bore does this master cylinder have?
                Asked on 4/29/2010 by ed from grove city ohio

                1 answer

                • CUSTOMER CARE

                  A:

                  40mm is the bore size.

                  Answered on 4/30/2010 by Rose from AAP
              Displaying questions 1-4

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