Skip to content

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.

Filters

Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 168.09
$ 168.09 - $ 168.09
$ 168.09
$ 134.49
$ 134.49 - $ 134.49
$ 134.49

Flexfab 5581-400, 4.00" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 102mm

Product Details The Flexfab 5581-400 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 168.09
$ 168.09 - $ 168.09
$ 168.09
$ 134.49
$ 134.49 - $ 134.49
$ 134.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 665.29
$ 665.29 - $ 665.29
$ 665.29
$ 532.19
$ 532.19 - $ 532.19
$ 532.19

Flexfab 5581-375X12, 3.75" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 95mm

Product Details The Flexfab 5581-375X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 665.29
$ 665.29 - $ 665.29
$ 665.29
$ 532.19
$ 532.19 - $ 532.19
$ 532.19
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 166.29
$ 166.29 - $ 166.29
$ 166.29
$ 133.09
$ 133.09 - $ 133.09
$ 133.09

Flexfab 5581-375, 3.75" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 95mm

Product Details The Flexfab 5581-375 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 166.29
$ 166.29 - $ 166.29
$ 166.29
$ 133.09
$ 133.09 - $ 133.09
$ 133.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 661.89
$ 661.89 - $ 661.89
$ 661.89
$ 529.49
$ 529.49 - $ 529.49
$ 529.49

Flexfab 5581-350X12, 3.50" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 89mm

Product Details The Flexfab 5581-350X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 661.89
$ 661.89 - $ 661.89
$ 661.89
$ 529.49
$ 529.49 - $ 529.49
$ 529.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 165.49
$ 165.49 - $ 165.49
$ 165.49
$ 132.39
$ 132.39 - $ 132.39
$ 132.39

Flexfab 5581-350, 3.50" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 89mm

Product Details The Flexfab 5581-350 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 165.49
$ 165.49 - $ 165.49
$ 165.49
$ 132.39
$ 132.39 - $ 132.39
$ 132.39
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 560.49
$ 560.49 - $ 560.49
$ 560.49
$ 448.39
$ 448.39 - $ 448.39
$ 448.39

Flexfab 5581-338X12, 3.38" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 86mm

Product Details The Flexfab 5581-338X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 560.49
$ 560.49 - $ 560.49
$ 560.49
$ 448.39
$ 448.39 - $ 448.39
$ 448.39
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 140.09
$ 140.09 - $ 140.09
$ 140.09
$ 112.09
$ 112.09 - $ 112.09
$ 112.09

Flexfab 5581-338, 3.38" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 86mm

Product Details The Flexfab 5581-338 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 140.09
$ 140.09 - $ 140.09
$ 140.09
$ 112.09
$ 112.09 - $ 112.09
$ 112.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 599.59
$ 599.59 - $ 599.59
$ 599.59
$ 479.69
$ 479.69 - $ 479.69
$ 479.69

Flexfab 5581-325X12, 3.25" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 83mm

Product Details The Flexfab 5581-325X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 599.59
$ 599.59 - $ 599.59
$ 599.59
$ 479.69
$ 479.69 - $ 479.69
$ 479.69
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 149.89
$ 149.89 - $ 149.89
$ 149.89
$ 119.89
$ 119.89 - $ 119.89
$ 119.89

Flexfab 5581-325, 3.25" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 83mm

Product Details The Flexfab 5581-325 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 149.89
$ 149.89 - $ 149.89
$ 149.89
$ 119.89
$ 119.89 - $ 119.89
$ 119.89
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 468.09
$ 468.09 - $ 468.09
$ 468.09
$ 374.49
$ 374.49 - $ 374.49
$ 374.49

Flexfab 5581-312X12, 3.13" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 80mm

Product Details The Flexfab 5581-312X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 468.09
$ 468.09 - $ 468.09
$ 468.09
$ 374.49
$ 374.49 - $ 374.49
$ 374.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 580.49
$ 580.49 - $ 580.49
$ 580.49
$ 464.39
$ 464.39 - $ 464.39
$ 464.39

Flexfab 5581-300X12, 3.00" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 76mm

Product Details The Flexfab 5581-300X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 580.49
$ 580.49 - $ 580.49
$ 580.49
$ 464.39
$ 464.39 - $ 464.39
$ 464.39
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 145.09
$ 145.09 - $ 145.09
$ 145.09
$ 116.09
$ 116.09 - $ 116.09
$ 116.09

Flexfab 5581-300, 3.00" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 76mm

Product Details The Flexfab 5581-300 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 145.09
$ 145.09 - $ 145.09
$ 145.09
$ 116.09
$ 116.09 - $ 116.09
$ 116.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 489.49
$ 489.49 - $ 489.49
$ 489.49
$ 391.59
$ 391.59 - $ 391.59
$ 391.59

Flexfab 5581-287X12, 2.88" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 73mm

Product Details The Flexfab 5581-287X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 489.49
$ 489.49 - $ 489.49
$ 489.49
$ 391.59
$ 391.59 - $ 391.59
$ 391.59
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 122.39
$ 122.39 - $ 122.39
$ 122.39
$ 97.89
$ 97.89 - $ 97.89
$ 97.89

Flexfab 5581-287, 2.88" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 73mm

Product Details The Flexfab 5581-287 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 122.39
$ 122.39 - $ 122.39
$ 122.39
$ 97.89
$ 97.89 - $ 97.89
$ 97.89
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 524.29
$ 524.29 - $ 524.29
$ 524.29
$ 419.39
$ 419.39 - $ 419.39
$ 419.39

Flexfab 5581-275X12, 2.75" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 70mm

Product Details The Flexfab 5581-275X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 524.29
$ 524.29 - $ 524.29
$ 524.29
$ 419.39
$ 419.39 - $ 419.39
$ 419.39
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 131.09
$ 131.09 - $ 131.09
$ 131.09
$ 104.89
$ 104.89 - $ 104.89
$ 104.89

Flexfab 5581-275, 2.75" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 70mm

Product Details The Flexfab 5581-275 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 131.09
$ 131.09 - $ 131.09
$ 131.09
$ 104.89
$ 104.89 - $ 104.89
$ 104.89
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 390.59
$ 390.59 - $ 390.59
$ 390.59
$ 312.49
$ 312.49 - $ 312.49
$ 312.49

Flexfab 5581-262X12, 2.63" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 67mm

Product Details The Flexfab 5581-262X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 390.59
$ 390.59 - $ 390.59
$ 390.59
$ 312.49
$ 312.49 - $ 312.49
$ 312.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 97.69
$ 97.69 - $ 97.69
$ 97.69
$ 78.09
$ 78.09 - $ 78.09
$ 78.09

Flexfab 5581-262, 2.63" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 67mm

Product Details The Flexfab 5581-262 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 97.69
$ 97.69 - $ 97.69
$ 97.69
$ 78.09
$ 78.09 - $ 78.09
$ 78.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 484.89
$ 484.89 - $ 484.89
$ 484.89
$ 387.89
$ 387.89 - $ 387.89
$ 387.89

Flexfab 5581-250X12, 2.50" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 64mm

Product Details The Flexfab 5581-250X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 484.89
$ 484.89 - $ 484.89
$ 484.89
$ 387.89
$ 387.89 - $ 387.89
$ 387.89
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 121.19
$ 121.19 - $ 121.19
$ 121.19
$ 96.99
$ 96.99 - $ 96.99
$ 96.99

Flexfab 5581-250, 2.50" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 64mm

Product Details The Flexfab 5581-250 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 121.19
$ 121.19 - $ 121.19
$ 121.19
$ 96.99
$ 96.99 - $ 96.99
$ 96.99
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 466.49
$ 466.49 - $ 466.49
$ 466.49
$ 373.19
$ 373.19 - $ 373.19
$ 373.19

Flexfab 5581-238X12, 2.38" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 60mm

Product Details The Flexfab 5581-238X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 466.49
$ 466.49 - $ 466.49
$ 466.49
$ 373.19
$ 373.19 - $ 373.19
$ 373.19
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 116.59
$ 116.59 - $ 116.59
$ 116.59
$ 93.29
$ 93.29 - $ 93.29
$ 93.29

Flexfab 5581-238, 2.38" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 60mm

Product Details The Flexfab 5581-238 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 116.59
$ 116.59 - $ 116.59
$ 116.59
$ 93.29
$ 93.29 - $ 93.29
$ 93.29
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 463.89
$ 463.89 - $ 463.89
$ 463.89
$ 371.09
$ 371.09 - $ 371.09
$ 371.09

Flexfab 5581-225X12, 2.25" x 12 ft, 4-Ply Blue Silicone Coolant Hose, 57mm

Product Details The Flexfab 5581-225X12 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It r...

View full details
$ 463.89
$ 463.89 - $ 463.89
$ 463.89
$ 371.09
$ 371.09 - $ 371.09
$ 371.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 115.99
$ 115.99 - $ 115.99
$ 115.99
$ 92.79
$ 92.79 - $ 92.79
$ 92.79

Flexfab 5581-225, 2.25" x 3 ft, 4-Ply Blue Silicone Coolant Hose, 57mm

Product Details The Flexfab 5581-225 is a silicone hose w/ 4-ply polyester reinforcement hose engineered for demanding engine environments. It resi...

View full details
$ 115.99
$ 115.99 - $ 115.99
$ 115.99
$ 92.79
$ 92.79 - $ 92.79
$ 92.79
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.