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NRS Barrel Pump Piston

Item: 80088.01 | Product Description »


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Replacement piston for the 5" NRS Barrel Pump.

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The NRS 5" Barrel Pump is "built to last, get wet, and get used". It's a workhorse that private boaters and outfitters have come to love. With an output of 1.8 gallons of air per stroke, it makes short work of inflating rafts, catarafts and inflatable kayaks (IKs).

video: NRS 5" Barrel Pump

NRS 5" Barrel Pump (1:03)

The NRS 5" Barrel Pump has been a favorite of outfitters and private boaters for years. This rugged, high-volume pump delivers over 2 gallons of air per stroke to quickly inflate rafts, catarafts, inflatable kayaks, SUP boards and that big air mattress you have! The 6.5' hose easily reaches all your valves. Easy to use, built to last.


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(based on 1 review)

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Reviewed by 1 customer

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The best one of these,ever.

By Alta's Dad.

from In my cabin...waiting for snow.

About Me Professional



      Best Uses

      • Boating

      See 5" rubber gasket review...

      Service and delivery comments:

      Fast as always.

      • Was this a gift?:
      • No

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      Do you have questions about this product?

      Get answers from real customers and in-house experts with AnswerBox.

      3 Questions | 7 Answers
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      • NRS Barrel Pump Piston


        My NRS 5" Barrel Pump is not working correctly. I am able to complete a few strokes on it, then it seems to go into an air lock and will allow any more downward strokes. Once the hose is removed from the raft valve, the pump releases and the shaft goes down again. Any recommendations? This just started happening, have tried it on multiple different rafts and same result. I also took the pump apart, cleaned, and re-greased. I did not replace the O-Ring as it was in good shape. That will be the next step, unless you know of any other fixes or what may be causing this.

        Thank you
        Asked on 7/7/2014 by Mike from United States

        1 answer



          Mike, it sounds like a problem with your check valve. You can try to remove or disable it, if you'd like extra guidance feel free to call us and talk to Geoff in our repairs department.

          Answered on 7/8/2014 by Kyle from NRS
      • NRS Barrel Pump Piston


        I just purchased the 5" replacement piston for my older (unknown age)pump, but I cannot fit this new piston back into the pump shaft. I know for a fact I have a 5" NRS pump as it says so on the side of the pump. How easy should it be to get the new piston to fit into the pump? Thanks,
        Asked on 5/31/2014 by Sam S. from Hillsboro, Or

        5 answers



          Should be real easy. Do you have the O-ring greased? Watch the video nrs
          posted about reassembling and maintenance. They suggest putting the pump
          back together by angling the pump shaft and piston. Hope it works out!

          Answered on 6/6/2014 by Bay Bay from Grand Junction CO
        • Staff Reviewer


          Sam, take a look at this video. If it doesn't answer your questions, please call us, 800.635.5202, on Monday and ask to speak to the Repair Department. They work on this pump and will be able to help you. - http://www.nrs.com/boating_tips/how_to_maintain_nrs_barrel_pump.asp.

          Answered on 5/31/2014 by Clyde from NRS


          I would think that the piston should go back into the barrel fairly easy.
          Should be somewhat tight to form a nice seal. Make the o-ring is greased
          up as well as the inside of the barrel. Still not working? Get a tape
          measure and check the diameters of the piston and barrel.

          Answered on 5/31/2014 by Anonymous


          It should be pretty easy. Just clean the inside,grease it and push the
          o-ring in evenly

          Answered on 6/2/2014 by Anonymous


          I recently replaced the piston in my ~8 year old pump and it went in very
          easily. Fit perfectly.
          Glad they reinforced the little things that hold the gasket in place, I had
          glued mine a number of times, hence the replacement.

          Answered on 6/2/2014 by Anonymous
      • NRS Barrel Pump Piston


        will this fit pumps made prior to 2010? If not can I get a replacement?
        Asked on 6/10/2013 by swimminguy from Utah

        1 answer

        • Staff Reviewer


          Yes, this will work in the older pumps. The piston is glued in so you'll need to cut off the old and glue in the new. You'll lose an inch or so of stroke, or you can order a new Handle and Shaft, Item # 1709.4.

          Answered on 6/11/2013 by Clyde from NRS
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