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Flexfab 5521 Green Premium Heater Hose

The Flexfab 5521 series is premium green silicone heater hose rated to 350F, built for demanding radiator and coolant applications. Sold by the foot, box, or reel across a full range of diameters.

  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €1.359,95 - €1.359,95
    €1.359,95
    €1.359,95 - €1.359,95
    €1.359,95

    Flexfab 5521-087x150, 7/8" ID x 150 ft Spool Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-087x150 premium silicone heater hose — a 150-foot spool of 7/8" ID hose with a thicker wa...

    View full details
    €1.359,95 - €1.359,95
    €1.359,95
    €1.359,95 - €1.359,95
    €1.359,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €353,95 - €353,95
    €353,95
    €353,95 - €353,95
    €353,95

    Flexfab 5521-087x50, 7/8" ID x 50 ft Box Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-087x50 premium silicone heater hose — a 50-foot box of 7/8" ID hose with a thicker wall t...

    View full details
    €353,95 - €353,95
    €353,95
    €353,95 - €353,95
    €353,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €191,95 - €191,95
    €191,95
    €191,95 - €191,95
    €191,95

    Flexfab 5521-087x25, 7/8" ID x 25 ft Box Premium Green Silicone Heater Hose, 22mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-087x25 premium silicone heater hose — a 25-foot box of 7/8" ID hose with a thicker wall t...

    View full details
    €191,95 - €191,95
    €191,95
    €191,95 - €191,95
    €191,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €1.842,95 - €1.842,95
    €1.842,95
    €1.842,95 - €1.842,95
    €1.842,95

    Flexfab 5521-075x300, 3/4" ID x 300 ft Spool Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-075x300 premium silicone heater hose — a 300-foot spool of 3/4" ID hose with a thicker wa...

    View full details
    €1.842,95 - €1.842,95
    €1.842,95
    €1.842,95 - €1.842,95
    €1.842,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €333,95 - €333,95
    €333,95
    €333,95 - €333,95
    €333,95

    Flexfab 5521-075x50, 3/4" ID x 50 ft Box Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-075x50 premium silicone heater hose — a 50-foot box of 3/4" ID hose with a thicker wall t...

    View full details
    €333,95 - €333,95
    €333,95
    €333,95 - €333,95
    €333,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €182,95 - €182,95
    €182,95
    €182,95 - €182,95
    €182,95

    Flexfab 5521-075x25, 3/4" ID x 25 ft Box Premium Green Silicone Heater Hose, 19mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-075x25 premium silicone heater hose — a 25-foot box of 3/4" ID hose with a thicker wall t...

    View full details
    €182,95 - €182,95
    €182,95
    €182,95 - €182,95
    €182,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €2.017,95 - €2.017,95
    €2.017,95
    €2.017,95 - €2.017,95
    €2.017,95

    Flexfab 5521-062x400, 5/8" ID x 400 ft Spool Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-062x400 premium silicone heater hose — a 400-foot spool of 5/8" ID hose with a thicker wa...

    View full details
    €2.017,95 - €2.017,95
    €2.017,95
    €2.017,95 - €2.017,95
    €2.017,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €253,95 - €253,95
    €253,95
    €253,95 - €253,95
    €253,95

    Flexfab 5521-062x50, 5/8" ID x 50 ft Box Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-062x50 premium silicone heater hose — a 50-foot box of 5/8" ID hose with a thicker wall t...

    View full details
    €253,95 - €253,95
    €253,95
    €253,95 - €253,95
    €253,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €137,95 - €137,95
    €137,95
    €137,95 - €137,95
    €137,95

    Flexfab 5521-062x25, 5/8" ID x 25 ft Box Premium Green Silicone Heater Hose, 16mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-062x25 premium silicone heater hose — a 25-foot box of 5/8" ID hose with a thicker wall t...

    View full details
    €137,95 - €137,95
    €137,95
    €137,95 - €137,95
    €137,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €2.193,95 - €2.193,95
    €2.193,95
    €2.193,95 - €2.193,95
    €2.193,95

    Flexfab 5521-050x500, 1/2" ID x 500 ft Spool Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-050x500 premium silicone heater hose — a 500-foot spool of 1/2" ID hose with a thicker wa...

    View full details
    €2.193,95 - €2.193,95
    €2.193,95
    €2.193,95 - €2.193,95
    €2.193,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €218,95 - €218,95
    €218,95
    €218,95 - €218,95
    €218,95

    Flexfab 5521-050x50, 1/2" ID x 50 ft Box Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-050x50 premium silicone heater hose — a 50-foot box of 1/2" ID hose with a thicker wall t...

    View full details
    €218,95 - €218,95
    €218,95
    €218,95 - €218,95
    €218,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €121,95 - €121,95
    €121,95
    €121,95 - €121,95
    €121,95

    Flexfab 5521-050x25, 1/2" ID x 25 ft Box Premium Green Silicone Heater Hose, 13mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-050x25 premium silicone heater hose — a 25-foot box of 1/2" ID hose with a thicker wall t...

    View full details
    €121,95 - €121,95
    €121,95
    €121,95 - €121,95
    €121,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €1.908,95 - €1.908,95
    €1.908,95
    €1.908,95 - €1.908,95
    €1.908,95

    Flexfab 5521-038x500, 3/8" ID x 500 ft Spool Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-038x500 premium silicone heater hose — a 500-foot spool of 3/8" ID hose with a thicker wa...

    View full details
    €1.908,95 - €1.908,95
    €1.908,95
    €1.908,95 - €1.908,95
    €1.908,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €196,95 - €196,95
    €196,95
    €196,95 - €196,95
    €196,95

    Flexfab 5521-038x50, 3/8" ID x 50 ft Box Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-038x50 premium silicone heater hose — a 50-foot box of 3/8" ID hose with a thicker wall t...

    View full details
    €196,95 - €196,95
    €196,95
    €196,95 - €196,95
    €196,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95

    Flexfab 5521-038x25, 3/8" ID x 25 ft Box Premium Green Silicone Heater Hose, 10mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-038x25 premium silicone heater hose — a 25-foot box of 3/8" ID hose with a thicker wall t...

    View full details
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €2.412,95 - €2.412,95
    €2.412,95
    €2.412,95 - €2.412,95
    €2.412,95

    Flexfab 5521-031x600, 5/16" ID x 600 ft Spool Premium Green Silicone Heater Hose, 8mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-031x600 premium silicone heater hose — a 600-foot spool of 5/16" ID hose with a thicker w...

    View full details
    €2.412,95 - €2.412,95
    €2.412,95
    €2.412,95 - €2.412,95
    €2.412,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95

    Flexfab 5521-031x25, 5/16" ID x 25 ft Box Premium Green Silicone Heater Hose, 8mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-031x25 premium silicone heater hose — a 25-foot box of 5/16" ID hose with a thicker wall ...

    View full details
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €2.368,95 - €2.368,95
    €2.368,95
    €2.368,95 - €2.368,95
    €2.368,95

    Flexfab 5521-025x800, 1/4" ID x 800 ft Spool Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-025x800 premium silicone heater hose — a 800-foot spool of 1/4" ID hose with a thicker wa...

    View full details
    €2.368,95 - €2.368,95
    €2.368,95
    €2.368,95 - €2.368,95
    €2.368,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €175,95 - €175,95
    €175,95
    €175,95 - €175,95
    €175,95

    Flexfab 5521-025x50, 1/4" ID x 50 ft Box Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-025x50 premium silicone heater hose — a 50-foot box of 1/4" ID hose with a thicker wall t...

    View full details
    €175,95 - €175,95
    €175,95
    €175,95 - €175,95
    €175,95
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    €90,95 - €90,95
    €90,95
    €90,95 - €90,95
    €90,95

    Flexfab 5521-025x25, 1/4" ID x 25 ft Box Premium Green Silicone Heater Hose, 6mm 350F Radiator Coolant

    In stock

    Step up to higher pressure handling with the Flexfab 5521-025x25 premium silicone heater hose — a 25-foot box of 1/4" ID hose with a thicker wall t...

    View full details
    €90,95 - €90,95
    €90,95
    €90,95 - €90,95
    €90,95
  • €291,95 - €291,95
    €291,95
    €291,95 - €291,95
    €291,95

    Flexfab 5521-125, 1-1/4" x 25 ft Green Premium Silicone Heater Hose, 1.25"

    In stock

    FlexFab Series: 5521 Part Number: 5521-125 Inside Diameter (ID): 1.25" (32mm) Outside Diameter (OD): 1.64" (42mm) Hose Length: 25' Bend Radious: ...

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    €291,95 - €291,95
    €291,95
    €291,95 - €291,95
    €291,95
  • €337,95 - €337,95
    €337,95
    €337,95 - €337,95
    €337,95

    Flexfab 5521-087, 7/8" x 50 ft Green Premium Silicone Heater Hose, .88"

    In stock

    FlexFab Series: 5521 Part Number: 5521-087 Suggested Clamp: FLX2582-0012 Inside Diameter (ID): 0.88" (22mm) Outside Diameter (OD): 1.27" (32mm)...

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    €337,95 - €337,95
    €337,95
    €337,95 - €337,95
    €337,95
  • €179,95 - €179,95
    €179,95
    €179,95 - €179,95
    €179,95

    Flexfab 5521-087, 7/8" x 25 ft Green Premium Silicone Heater Hose, .88"

    In stock

    FlexFab Series: 5521 Part Number: 5521-087 Suggested Clamp: FLX2582-0012 Inside Diameter (ID): 0.88" (22mm) Outside Diameter (OD): 1.27" (32mm)...

    View full details
    €179,95 - €179,95
    €179,95
    €179,95 - €179,95
    €179,95
  • €315,95 - €315,95
    €315,95
    €315,95 - €315,95
    €315,95

    Flexfab 5521-075, 3/4" x 50 ft Green Premium Silicone Heater Hose, .75"

    In stock

    FlexFab Series: 5521 Part Number: 5521-075 Suggested Clamp: FLX2582-0012 Inside Diameter (ID): 0.75" (19mm) Outside Diameter (OD): 1.14" (29mm)...

    View full details
    €315,95 - €315,95
    €315,95
    €315,95 - €315,95
    €315,95