Radiator Cap
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CARQUEST Caps and Stats Radiator Cap

Part No. 10231 Warranty Details  

See if this part fits a specific vehicle.

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Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications.

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Cap Finish:Plated
Cap Material:Steel
Logo:Yes
Material:Steel
Maximum Pressure:18
OE Replacement:Yes
Quick Pressure Release:Yes
Radiator Cap Shape:4 Nib
Reservoir Overflow System:Yes
Shape:4 Nib

REVIEW SNAPSHOT®

by PowerReviews
CARQUEST Caps and StatsRadiator Cap
 
4.4

(based on 35 reviews)

Ratings Distribution

  • 5 Stars

     

    (25)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

82%

of respondents would recommend this to a friend.

Pros

  • Easy to install (27)
  • Durable (16)
  • Lightweight (5)
  • Improves engine efficiency (4)

Cons

  • No improvement in performance (3)

Best Uses

  • Everyday driving (21)
  • Replacement (21)
  • Restoration (9)
  • Performance driving (8)
  • Racing (4)
    • Reviewer Profile:
    • Casual driver (13), Auto enthusiast (11), Mechanic (11), Truck enthusiast (7)

Most Liked Positive Review

 

Great Product..Great Price

Bought online...Ready to pick up at Store...Quick & Easy

Bought online...Ready to pick up at Store...Quick & Easy

VS

Most Liked Negative Review

 

Would not hold pressure.

I went with this brand name cap as a preventive measure item on my van since the old cap had over 200,000 miles on it. This cap would not seal and the system would...Read complete review

I went with this brand name cap as a preventive measure item on my van since the old cap had over 200,000 miles on it. This cap would not seal and the system would not build pressure. I returned it and but the old cap back on. It has been 20,000 miles and the old cap is still working fine. That's what I get for doing preventive maintenance huh?

Reviewed by 35 customers

Displaying reviews 1-10

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5.0

Just what the DR. ordered

By 

from Woodbury, NJ

About Me Auto Enthusiast, Competitive Driver, Mechanic, Truck Enthusiast

Verified Buyer

Pros

  • Easy To Install

Cons

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Racing
    • Replacement
    • Restoration

    Comments about CARQUEST Caps and Stats Radiator Cap:

    When a cap goes bad, it is no fun quick unless you want a reason to go to the store. My old cap wouldn't allow for any pressure buildup and would fill my reservoir with a squeeze of the hose, engine cold. It would flow like it didn't even have a spring anymore. New cap. Hooray! Open the box with any method you prefer, a knife, screw driver, teeth, torch and burn away the cardboard, flame thrower (sure, why not?), grinder, chainsaw or any other method you prefer... You can even use your fingers. So now that you came up with a solution to recover the shiny little object in the box, you can unscrew the old one and screw in the new one. Ta-Da!

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    5.0

    I would buy this product again

    By 

    from Eaton Rapids, MI

    About Me Casual Driver

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Easy To Install

    Cons

    • No Improvement In Performance

    Best Uses

    • Replacement

    Comments about CARQUEST Caps and Stats Radiator Cap:

    Very Happy

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    First time I used Carquest

    By 

    from Charlotte, TN.

    About Me Casual Driver

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power
    • Lightweight

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Replacement
      • Restoration

      Comments about CARQUEST Caps and Stats Radiator Cap:

      Still trying it out, everything seems to be working Great!

      Comment on this reviewHelp Icon(earn points)

       
      5.0

      used on Van to replace an old cap

      Profile Image

      By 

      from Des Moines, Iowa

      About Me Casual Driver

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Everyday Driving

        Comments about CARQUEST Caps and Stats Radiator Cap:

        perfect fit, was easy to place on radiator

        Comment on this reviewHelp Icon(earn points)

         
        5.0

        fit perfect

        By 

        from mobile AL

        Verified Buyer
        3 or more reviews submitted

        Pros

        • Durable
        • Easy To Install

        Cons

          Best Uses

            Comments about CARQUEST Caps and Stats Radiator Cap:

            If your old cap has hardened rubber seal, this is the best thing you can do to save yourself a leaking radiator. Takes just a few seconds to replace. And even though they dont seem like a wear item, they are. They get old and dont work as well as new.

            Comment on this reviewHelp Icon(earn points)

             
            5.0

            Radiator cap

            By 

            from Newport News, VA

            About Me Casual Driver

            Verified Buyer

            Pros

            • Durable
            • Easy To Install

            Cons

              Best Uses

              • Everyday Driving

              Comments about CARQUEST Caps and Stats Radiator Cap:

              Proper fitting parts at reasonable prices.

              Comment on this reviewHelp Icon(earn points)

               
              5.0

              Caps that pesky hole on top of your radiator

              Profile Image

              By 

              from Weatherford, Tx

              About Me Mechanic

              Verified Buyer
              3 or more reviews submitted

              Pros

              • Easy To Install

              Cons

                Best Uses

                • Replacement

                Comments about CARQUEST Caps and Stats Radiator Cap:

                This is not an exotic part, but I did test it prior to installation with my Stant pressure tester and it popped off at the correct labeled pressure and held pressure indefinitely. What more could you ask for ?

                Comment on this reviewHelp Icon(earn points)

                 
                5.0

                new radiator,new radiator cap as well

                By 

                from grand rapids ,mi

                About Me Auto Enthusiast, Mechanic

                Verified Buyer

                Pros

                • Durable
                • Easy To Install
                • Lightweight

                Cons

                • No Improvement In Performance

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about CARQUEST Caps and Stats Radiator Cap:

                complete the job of replacing a radiator with a new cap

                Comment on this reviewHelp Icon(earn points)

                 
                5.0

                Fits great

                By 

                from Flushing, MI

                About Me Casual Driver, Truck Enthusiast

                3 or more reviews submitted

                Pros

                • Easy To Install

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about CARQUEST Caps and Stats Radiator Cap:

                  Its a radiator cap, not much to go wrong here. seems to be of good quality, i would certainly buy it again if i needed one.

                  Comment on this reviewHelp Icon(earn points)

                   
                  1.0

                  Bad buy

                  By 

                  from Sellersville pa

                  About Me Casual Driver

                  Pros

                  • Cheap

                  Cons

                  • Does Not Hold Pressure

                  Best Uses

                  • Everyday Driving

                  Comments about CARQUEST Caps and Stats Radiator Cap:

                  Replaced lots of parts in my 1995 Chevy pick up including new radiator and cap. Within first 25 miles, I noticed a leak. It was the cap. Cap does not hold pressure. Goes to show, you get what you pay for. Junk. Do not buy.

                  Comment on this reviewHelp Icon(earn points)

                  Displaying reviews 1-10

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                  Do you have questions about this product?(earn points for answers!)

                   

                  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 | 6 Answers
                  Displaying questions 1-5
                  • Q:

                    WILL THIS CAP WORK ON MY 1999 CHEVROLET VENTURE VAN AND PROVIDE MORE HEAT? I HAVE CHANGED BOTH THERMASTAST, INTAKE MANIFOLD GASKETS AND VALVE COVER GASKETS.
                    Asked on 2/1/2015 by MIKE from HOOKSETT,NH

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Mike, happy to help you! This part is an exact fit for your 1999 Chevrolet Venture and the pressure rating is 16 psi. When coolant fluid overheats, it expands, causing the fluid to become highly pressurized. When it enters the radiator, the pressure increases even more because it’s in an enclosed space. The radiator cap acts as a release valve set to open at the maximum pressure point. Usually this is set at a density of 15 pounds per square inch (psi). When the fluid pressure inside the radiator exceeds 15 psi, it forces the valve open, allowing heat to escape and excess coolant fluid to overflow into the tanks on either side of the radiator. Once the radiator cools down, the coolant fluid in the overflow tanks gets sucked back into the pump, continuing its route through the cooling system.

                      Answered on 2/2/2015 by Steve from AAP
                  • Q:

                    I NOW HAVE A 13LB.RADIATOR CAP,BUT IT OVERFLOWS WHEN USING...CAN I PUT A HIGHER PRESSURE CAP ON ?
                    Asked on 3/20/2014 by JOE FARMER

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi JOE FARMER, great question! Yes, if the 13lb radiator cap does not lock up tight, you can put a high pressure cap on.

                      Answered on 3/26/2014 by Vincent from AAP
                  • Q:

                    how many lbs. should the radiator cap be,on a 95 gmc sonoma with a 4.3 engine?
                    Asked on 9/2/2012 by lewis from lakeland,fl.

                    1 answer

                    • CUSTOMER CARE

                      A:

                      The weight of this Stant Radiator Cap (Part# 10231) is 0.2 lbs. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                      Answered on 9/3/2012 by Rick from AAP
                  • Q:

                    do sell 6pound radaint cap for 2000 chev van 350 motor
                    Asked on 5/3/2012 by Anonymous

                    1 answer

                    • CUSTOMER CARE

                      A:

                      We greatly appreciate your taking time to submit a review. Please call us at 1-877-ADVANCE (238-2623) and we would be more than happy to assist you.

                      Answered on 5/6/2012 by Vincent from AAP
                  • Q:

                    How do I know when too replace my radiator cap? Will it cause the motor to overheat, underheat?
                    Asked on 4/1/2011 by Anonymous

                    2 answers

                    • A:

                      Yes. A bad cap can cause the engine to overheat if it loses its ability to hold pressure in the cooling system. You can get a radiator cap tester to check it.

                      Answered on 4/16/2011 by 1 SicVic from Southern NJ
                    • A:

                      You could use a pressure tester to check it but it's so inexpensive you could just replace it with the recommended pressure.

                      As to your question, if it is not holding the correct pressure the boiling point of the coolant could be too low which *MAY* lead to overheating, especially if it is hot and you're running the AC. If for some reason it doesn't relase at the right pressure (I haven' seen it so this is hypothetical) I imagine the system could overpressure. Most likely it would break a seam on the radiator or damage the seal on the water pump.

                      Answered on 4/17/2011 by Zeke from Bloomington, IL
                  Displaying questions 1-5

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