Flex Radiator Hose
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CARQUEST by Dayco Flex Radiator Hose

Part No. 81131 Warranty Details  

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Precision molded in standard lengths, Dayco’s Flex Radiator Hose is designed to replace straight or molded radiator hoses. This Flex Radiator Hose is another Dayco product proudly made in the USA. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:
  • The knitted reinforcement and synthetic EPDM construction meets SAE J20R4, Class D-2 requirements
  • Resists ozone and other detrimental environmental elements, coolants, and temperature variations of -40°F (-40°C) to +257°F (+125°C)
  • The corrugations provide excellent hose flexibility without flattening or collapse
  • This hose is designed to prevent splitting, ballooning, and elongation
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End 1 Inside Diameter:1 1/2 in
End 2 Inside Diameter:1 1/2 in
Heat Shield:N
Hose Type:Single I.D. Hose
Protective Sleeve Attached:N
SAE Approved:SAE J20R4 Class D-2

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1 Question | 2 Answers
Displaying question 1
  • Q:

    These flex radiator hoses have the length listed, but not the diameter! Thats the most important part and its not even on the specs. Why not list the size so people will know if it will work for their application instead of having to go to the store or call. Duh...
    Asked on 6/7/2014 by grumpy from Anytown USA

    2 answers



      I'm happy to help, Grumpy! This Dayco Flex Radiator hose has a diameter of 1 1/2". This hose is does have some specific vehicles that it will fit. When the vehicle that this hose fits is entered into the website it will indicate that this hose is an exact fit for that vehicle. This hose may fit other vehicles as well. There may be a better fitting part for those vehicles, however. You can also find the detailed specifications for the part on Dayco's website here: http://www.daycoproducts.com/part?findtext%3D81131%26part_number%3D81131

      Answered on 6/9/2014 by Heath, ASE Parts Specialist from AAP


      Hello Grumpy, I appologize for any inconvience this may have caused. Here are the Product Dimensions that dayco has listed on there website; Large ID (Dec) B 1.50 Large ID (Frac) B 1 1/2 Small ID (Dec) A 1.50 Small ID (Frac) A 1 1/2 Hose Length 10 3/4

      Answered on 6/9/2014 by Wil from AAP
Displaying question 1

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