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Flexfab Silicone Hose

Flexfab silicone hose handles the heat, pressure, and vibration that take down ordinary rubber. This collection covers the full Flexfab range of silicone heater and coolant hose, from standard blue heater hose to premium green, 4-ply, wire-reinforced, and high-temp constructions for diesel, marine, transit, and heavy-duty cooling systems. Built in the USA and sold by the foot, box, or reel.

  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 127.79
    $ 127.79 - $ 127.79
    $ 127.79
    $ 102.19
    $ 102.19 - $ 102.19
    $ 102.19

    Flexfab 5780-138, 1.38" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 35mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-138 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 127.79
    $ 127.79 - $ 127.79
    $ 127.79
    $ 102.19
    $ 102.19 - $ 102.19
    $ 102.19
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 447.39
    $ 447.39 - $ 447.39
    $ 447.39
    $ 357.89
    $ 357.89 - $ 357.89
    $ 357.89

    Flexfab 5780-125X12, 1.25" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 32mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-125X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

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    $ 447.39
    $ 447.39 - $ 447.39
    $ 447.39
    $ 357.89
    $ 357.89 - $ 357.89
    $ 357.89
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 111.89
    $ 111.89 - $ 111.89
    $ 111.89
    $ 89.49
    $ 89.49 - $ 89.49
    $ 89.49

    Flexfab 5780-125, 1.25" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 32mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-125 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 111.89
    $ 111.89 - $ 111.89
    $ 111.89
    $ 89.49
    $ 89.49 - $ 89.49
    $ 89.49
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 104.39
    $ 104.39 - $ 104.39
    $ 104.39
    $ 83.49
    $ 83.49 - $ 83.49
    $ 83.49

    Flexfab 5780-112, 1.13" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 29mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-112 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 104.39
    $ 104.39 - $ 104.39
    $ 104.39
    $ 83.49
    $ 83.49 - $ 83.49
    $ 83.49
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 393.39
    $ 393.39 - $ 393.39
    $ 393.39
    $ 314.69
    $ 314.69 - $ 314.69
    $ 314.69

    Flexfab 5780-100X12, 1.00" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 25mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-100X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

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    $ 393.39
    $ 393.39 - $ 393.39
    $ 393.39
    $ 314.69
    $ 314.69 - $ 314.69
    $ 314.69
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 98.39
    $ 98.39 - $ 98.39
    $ 98.39
    $ 78.69
    $ 78.69 - $ 78.69
    $ 78.69

    Flexfab 5780-100, 1.00" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 25mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-100 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 98.39
    $ 98.39 - $ 98.39
    $ 98.39
    $ 78.69
    $ 78.69 - $ 78.69
    $ 78.69
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 367.09
    $ 367.09 - $ 367.09
    $ 367.09
    $ 293.69
    $ 293.69 - $ 293.69
    $ 293.69

    Flexfab 5780-087X12, 0.88" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 22mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-087X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

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    $ 367.09
    $ 367.09 - $ 367.09
    $ 367.09
    $ 293.69
    $ 293.69 - $ 293.69
    $ 293.69
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 91.79
    $ 91.79 - $ 91.79
    $ 91.79
    $ 73.39
    $ 73.39 - $ 73.39
    $ 73.39

    Flexfab 5780-087, 0.88" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 22mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-087 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 91.79
    $ 91.79 - $ 91.79
    $ 91.79
    $ 73.39
    $ 73.39 - $ 73.39
    $ 73.39
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 353.59
    $ 353.59 - $ 353.59
    $ 353.59
    $ 282.89
    $ 282.89 - $ 282.89
    $ 282.89

    Flexfab 5780-075X12, 0.75" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 19mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-075X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

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    $ 353.59
    $ 353.59 - $ 353.59
    $ 353.59
    $ 282.89
    $ 282.89 - $ 282.89
    $ 282.89
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 88.39
    $ 88.39 - $ 88.39
    $ 88.39
    $ 70.69
    $ 70.69 - $ 70.69
    $ 70.69

    Flexfab 5780-075, 0.75" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 19mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-075 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

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    $ 88.39
    $ 88.39 - $ 88.39
    $ 88.39
    $ 70.69
    $ 70.69 - $ 70.69
    $ 70.69
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 330.39
    $ 330.39 - $ 330.39
    $ 330.39
    $ 264.29
    $ 264.29 - $ 264.29
    $ 264.29

    Flexfab 5780-062X12, 0.63" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 16mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-062X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

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    $ 330.39
    $ 330.39 - $ 330.39
    $ 330.39
    $ 264.29
    $ 264.29 - $ 264.29
    $ 264.29
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  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 82.59
    $ 82.59 - $ 82.59
    $ 82.59
    $ 66.09
    $ 66.09 - $ 66.09
    $ 66.09

    Flexfab 5780-062, 0.63" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 16mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-062 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

    View full details
    $ 82.59
    $ 82.59 - $ 82.59
    $ 82.59
    $ 66.09
    $ 66.09 - $ 66.09
    $ 66.09
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 316.09
    $ 316.09 - $ 316.09
    $ 316.09
    $ 252.89
    $ 252.89 - $ 252.89
    $ 252.89

    Flexfab 5780-050X12, 0.50" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 13mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-050X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

    View full details
    $ 316.09
    $ 316.09 - $ 316.09
    $ 316.09
    $ 252.89
    $ 252.89 - $ 252.89
    $ 252.89
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
    Save 20% Save %
    $ 78.99
    $ 78.99 - $ 78.99
    $ 78.99
    $ 63.19
    $ 63.19 - $ 63.19
    $ 63.19

    Flexfab 5780-050, 0.50" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 13mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-050 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

    View full details
    $ 78.99
    $ 78.99 - $ 78.99
    $ 78.99
    $ 63.19
    $ 63.19 - $ 63.19
    $ 63.19
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 161.79
    $ 161.79 - $ 161.79
    $ 161.79
    $ 129.39
    $ 129.39 - $ 129.39
    $ 129.39

    Flexfab 5780-038X12, 0.38" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 10mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-038X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-arami...

    View full details
    $ 161.79
    $ 161.79 - $ 161.79
    $ 161.79
    $ 129.39
    $ 129.39 - $ 129.39
    $ 129.39
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 69.89
    $ 69.89 - $ 69.89
    $ 69.89
    $ 55.89
    $ 55.89 - $ 55.89
    $ 55.89

    Flexfab 5780-038, 0.38" x 3 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 10mm

    In stock

    Run coolant where standard silicone gives out with the Flexfab 5780-038 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid r...

    View full details
    $ 69.89
    $ 69.89 - $ 69.89
    $ 69.89
    $ 55.89
    $ 55.89 - $ 55.89
    $ 55.89
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 328.89
    $ 328.89 - $ 328.89
    $ 328.89
    $ 263.09
    $ 263.09 - $ 263.09
    $ 263.09

    Flexfab 5508-600, 6.00" x 3 ft, Wire Reinforced Silicone Coolant Hose, 152mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-600 wire-reinforced silicone coolant hose. A helical wire emb...

    View full details
    $ 328.89
    $ 328.89 - $ 328.89
    $ 328.89
    $ 263.09
    $ 263.09 - $ 263.09
    $ 263.09
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 982.89
    $ 982.89 - $ 982.89
    $ 982.89
    $ 786.29
    $ 786.29 - $ 786.29
    $ 786.29

    Flexfab 5508-400X12, 4.00" x 12 ft, Wire Reinforced Silicone Coolant Hose, 102mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-400X12 wire-reinforced silicone coolant hose. A helical wire ...

    View full details
    $ 982.89
    $ 982.89 - $ 982.89
    $ 982.89
    $ 786.29
    $ 786.29 - $ 786.29
    $ 786.29
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 245.69
    $ 245.69 - $ 245.69
    $ 245.69
    $ 196.59
    $ 196.59 - $ 196.59
    $ 196.59

    Flexfab 5508-400, 4.00" x 3 ft, Wire Reinforced Silicone Coolant Hose, 102mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-400 wire-reinforced silicone coolant hose. A helical wire emb...

    View full details
    $ 245.69
    $ 245.69 - $ 245.69
    $ 245.69
    $ 196.59
    $ 196.59 - $ 196.59
    $ 196.59
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 851.29
    $ 851.29 - $ 851.29
    $ 851.29
    $ 680.99
    $ 680.99 - $ 680.99
    $ 680.99

    Flexfab 5508-350X12, 3.50" x 12 ft, Wire Reinforced Silicone Coolant Hose, 89mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-350X12 wire-reinforced silicone coolant hose. A helical wire ...

    View full details
    $ 851.29
    $ 851.29 - $ 851.29
    $ 851.29
    $ 680.99
    $ 680.99 - $ 680.99
    $ 680.99
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 212.79
    $ 212.79 - $ 212.79
    $ 212.79
    $ 170.29
    $ 170.29 - $ 170.29
    $ 170.29

    Flexfab 5508-350, 3.50" x 3 ft, Wire Reinforced Silicone Coolant Hose, 89mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-350 wire-reinforced silicone coolant hose. A helical wire emb...

    View full details
    $ 212.79
    $ 212.79 - $ 212.79
    $ 212.79
    $ 170.29
    $ 170.29 - $ 170.29
    $ 170.29
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 806.59
    $ 806.59 - $ 806.59
    $ 806.59
    $ 645.29
    $ 645.29 - $ 645.29
    $ 645.29

    Flexfab 5508-300X12, 3.00" x 12 ft, Wire Reinforced Silicone Coolant Hose, 76mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-300X12 wire-reinforced silicone coolant hose. A helical wire ...

    View full details
    $ 806.59
    $ 806.59 - $ 806.59
    $ 806.59
    $ 645.29
    $ 645.29 - $ 645.29
    $ 645.29
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 201.69
    $ 201.69 - $ 201.69
    $ 201.69
    $ 161.29
    $ 161.29 - $ 161.29
    $ 161.29

    Flexfab 5508-300, 3.00" x 3 ft, Wire Reinforced Silicone Coolant Hose, 76mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-300 wire-reinforced silicone coolant hose. A helical wire emb...

    View full details
    $ 201.69
    $ 201.69 - $ 201.69
    $ 201.69
    $ 161.29
    $ 161.29 - $ 161.29
    $ 161.29
    Save 20% Save %
  • Flexfab KIT5003D heater hose repair kit hose and clamp kit
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    $ 627.69
    $ 627.69 - $ 627.69
    $ 627.69
    $ 502.09
    $ 502.09 - $ 502.09
    $ 502.09

    Flexfab 5508-275X12, 2.75" x 12 ft, Wire Reinforced Silicone Coolant Hose, 70mm

    In stock

    Hold a tight, leak-free seal even under vacuum and forced bends with the Flexfab 5508-275X12 wire-reinforced silicone coolant hose. A helical wire ...

    View full details
    $ 627.69
    $ 627.69 - $ 627.69
    $ 627.69
    $ 502.09
    $ 502.09 - $ 502.09
    $ 502.09
    Save 20% Save %