5526 Series - Standard Heater Hose

5526 Series - Standard Heater Hose

Engineered With Superior Flexibility And Durability, Flexfab’s Standard Heater Hose Is Resistant To Coolant Additives, As Well As Hardening, Cracking, Cold Leaks, And Aging. It’s Extreme Duty Cycle Tested And Withstands Temperatures From -65°F (-54°C) To +350°F (+177°C).


  • Extreme Temperature Resistance
  • Superior Flexibility
  • Bend Radius 5 X ID
  • Extreme Duty Cycle Tested For Hostile Engine Environments
  • Durable Construction
  • Coolant Additives
  • Box and Spool Lengths Available

Temperature Range

-65° F
350° F


  • Silicone Hose With 1-Ply Of Nylon Fiber Reinforcement
  • Available In Blue
  • Stocked In 25’ And 50’ Boxes
  • Available In Longer Lengths On Standard Wooden Spools -continuous lengths are not guaranteed, if continuous lengths are required please contact a sales rep for price and availability*


  • Meets Or Exceeds The Operating Requirements Of SAE J20 R3 Class A
  • Meets Or Exceeds The Operating Requirements Of TMC RP303B Class I Grade II
  • Standard Wall Thickness Is .140”/.170”
  • Working Pressure Is 1/3 Of The Burst Pressure
  • Bend Radius Is 5 Times The ID Of The Hose
  • Resists Hardening, Cracking, Cold Leaks, Aging,And Many Chemicals

Built to Withstand