Flex Radiator Hose
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CARQUEST by Dayco Flex Radiator Hose

Part No. 81261 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 3/4 in
Heat Shield:N
Hose Type:Dual I.D. Hose
Protective Sleeve Attached:N
SAE Approved:SAE J20R4 Class D-2


by PowerReviews
CARQUEST by DaycoFlex Radiator Hose

(based on 1 review)

Ratings Distribution

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  • 1 Stars



Reviewed by 1 customer

Displaying review 1

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perfect for


from Philadelphia

About Me Auto Enthusiast, Mechanic, Truck Enthusiast

Verified Buyer


  • Durable
  • Easy To Install


    Best Uses

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

    Comments about CARQUEST by Dayco Flex Radiator Hose:

    Worked great.

    Comment on this reviewHelp Icon

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    1 Question | 1 Answer
    Displaying question 1
    • Q:

      So what is the ID of the hose ends? Length is only one dimension I need to know.
      Asked on 6/22/2013 by rt

      1 answer



        The specifications for the Drive-Rite Flex Radiator Hose, Standard (Part No. 1318) are Weight: 1.25 lbs, Coolant Hose Color/Finish: Black, Coolant Hose Length (inches): 19.5, Coolant Hose Material: EPDM, Coolant Hose Type: Dual I.D. (Inside Diameter), Hose End (1) Inside Diameter (inches): 1.5, Hose End (1) Outside Diameter (inches): 1.88, Hose End (2) Inside Diameter (inches): 1.75, Hose End (2) Outside Diameter (inches): 2.13, Maximum Working Pressure (psi): 36.66, SAE Standards: SAE J20R4 Class D-1, SAE J1684 Type EC. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

        Answered on 6/22/2013 by Steve from AAP
    Displaying question 1

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