Skip to content
☀️ Take an Additional 10% Off Your Entire Order with code GEARUP10 at checkout.
☀️ Additional 10% Off • GEARUP10

Flexfab 5515 Blue Coolant Hose

The Flexfab 5515 series is 3-ply blue silicone coolant hose built for durability under heat and pressure. A workhorse coolant hose for diesel, marine, and heavy-duty cooling systems, available across a wide range of diameters and lengths.

Filters

Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.49
$ 56.49 - $ 56.49
$ 56.49

Flexfab 5515-125, 1.25" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 32mm

Product Details The Flexfab 5515-125 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.49
$ 56.49 - $ 56.49
$ 56.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 251.99
$ 251.99 - $ 251.99
$ 251.99
$ 201.59
$ 201.59 - $ 201.59
$ 201.59

Flexfab 5515-112X12, 1.13" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 29mm

Product Details The Flexfab 5515-112X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 251.99
$ 251.99 - $ 251.99
$ 251.99
$ 201.59
$ 201.59 - $ 201.59
$ 201.59
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 62.99
$ 62.99 - $ 62.99
$ 62.99
$ 50.39
$ 50.39 - $ 50.39
$ 50.39

Flexfab 5515-112, 1.13" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 29mm

Product Details The Flexfab 5515-112 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 62.99
$ 62.99 - $ 62.99
$ 62.99
$ 50.39
$ 50.39 - $ 50.39
$ 50.39
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant Save 20% Save %
$ 237.39
$ 237.39 - $ 237.39
$ 237.39
$ 189.89
$ 189.89 - $ 189.89
$ 189.89

Flexfab 5515-100X12, 1.00" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 25mm

Product Details The Flexfab 5515-100X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 237.39
$ 237.39 - $ 237.39
$ 237.39
$ 189.89
$ 189.89 - $ 189.89
$ 189.89
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 59.39
$ 59.39 - $ 59.39
$ 59.39
$ 47.49
$ 47.49 - $ 47.49
$ 47.49

Flexfab 5515-100, 1.00" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 25mm

Product Details The Flexfab 5515-100 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 59.39
$ 59.39 - $ 59.39
$ 59.39
$ 47.49
$ 47.49 - $ 47.49
$ 47.49
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 230.99
$ 230.99 - $ 230.99
$ 230.99
$ 184.79
$ 184.79 - $ 184.79
$ 184.79

Flexfab 5515-087X12, 0.88" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 22mm

Product Details The Flexfab 5515-087X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 230.99
$ 230.99 - $ 230.99
$ 230.99
$ 184.79
$ 184.79 - $ 184.79
$ 184.79
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 57.79
$ 57.79 - $ 57.79
$ 57.79
$ 46.19
$ 46.19 - $ 46.19
$ 46.19

Flexfab 5515-087, 0.88" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 22mm

Product Details The Flexfab 5515-087 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 57.79
$ 57.79 - $ 57.79
$ 57.79
$ 46.19
$ 46.19 - $ 46.19
$ 46.19
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 219.79
$ 219.79 - $ 219.79
$ 219.79
$ 175.79
$ 175.79 - $ 175.79
$ 175.79

Flexfab 5515-075X12, 0.75" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 19mm

Product Details The Flexfab 5515-075X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 219.79
$ 219.79 - $ 219.79
$ 219.79
$ 175.79
$ 175.79 - $ 175.79
$ 175.79
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 54.89
$ 54.89 - $ 54.89
$ 54.89
$ 43.99
$ 43.99 - $ 43.99
$ 43.99

Flexfab 5515-075, 0.75" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 19mm

Product Details The Flexfab 5515-075 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 54.89
$ 54.89 - $ 54.89
$ 54.89
$ 43.99
$ 43.99 - $ 43.99
$ 43.99
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 188.99
$ 188.99 - $ 188.99
$ 188.99
$ 151.19
$ 151.19 - $ 151.19
$ 151.19

Flexfab 5515-062X12, 0.63" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 16mm

Product Details The Flexfab 5515-062X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 188.99
$ 188.99 - $ 188.99
$ 188.99
$ 151.19
$ 151.19 - $ 151.19
$ 151.19
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 47.29
$ 47.29 - $ 47.29
$ 47.29
$ 37.79
$ 37.79 - $ 37.79
$ 37.79

Flexfab 5515-062, 0.63" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 16mm

Product Details The Flexfab 5515-062 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 47.29
$ 47.29 - $ 47.29
$ 47.29
$ 37.79
$ 37.79 - $ 37.79
$ 37.79
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 177.79
$ 177.79 - $ 177.79
$ 177.79
$ 142.19
$ 142.19 - $ 142.19
$ 142.19

Flexfab 5515-050X12, 0.50" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 13mm

Product Details The Flexfab 5515-050X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 177.79
$ 177.79 - $ 177.79
$ 177.79
$ 142.19
$ 142.19 - $ 142.19
$ 142.19
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 44.39
$ 44.39 - $ 44.39
$ 44.39
$ 35.59
$ 35.59 - $ 35.59
$ 35.59

Flexfab 5515-050, 0.50" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 13mm

Product Details The Flexfab 5515-050 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 44.39
$ 44.39 - $ 44.39
$ 44.39
$ 35.59
$ 35.59 - $ 35.59
$ 35.59
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 171.39
$ 171.39 - $ 171.39
$ 171.39
$ 137.09
$ 137.09 - $ 137.09
$ 137.09

Flexfab 5515-038X12, 0.38" x 12 ft, 3-Ply Blue Silicone Coolant Hose, 10mm

Product Details The Flexfab 5515-038X12 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening...

View full details
$ 171.39
$ 171.39 - $ 171.39
$ 171.39
$ 137.09
$ 137.09 - $ 137.09
$ 137.09
Save 20% Save %
Flexfab 5526-062x50, 5/8" ID x 50 ft Box Blue Silicone Heater Hose, 16mm 350F Radiator Coolant
Save 20% Save %
$ 42.89
$ 42.89 - $ 42.89
$ 42.89
$ 34.29
$ 34.29 - $ 34.29
$ 34.29

Flexfab 5515-038, 0.38" x 3 ft, 3-Ply Blue Silicone Coolant Hose, 10mm

Product Details The Flexfab 5515-038 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 42.89
$ 42.89 - $ 42.89
$ 42.89
$ 34.29
$ 34.29 - $ 34.29
$ 34.29
Save 20% Save %
Flexfab 5515-375, 3.75" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 95mm
Save 20% Save %
$ 130.29
$ 130.29 - $ 130.29
$ 130.29
$ 104.23
$ 104.23 - $ 104.23
$ 104.23

Flexfab 5515-375, 3.75" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 95mm

Product Details The Flexfab 5515-375 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 130.29
$ 130.29 - $ 130.29
$ 130.29
$ 104.23
$ 104.23 - $ 104.23
$ 104.23
Save 20% Save %
Flexfab 5515-325, 3.25" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 83mm
Save 20% Save %
$ 114.39
$ 114.39 - $ 114.39
$ 114.39
$ 91.51
$ 91.51 - $ 91.51
$ 91.51

Flexfab 5515-325, 3.25" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 83mm

Product Details The Flexfab 5515-325 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 114.39
$ 114.39 - $ 114.39
$ 114.39
$ 91.51
$ 91.51 - $ 91.51
$ 91.51
Save 20% Save %
Flexfab 5515-312, 3.13" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 80mm
Save 20% Save %
$ 112.39
$ 112.39 - $ 112.39
$ 112.39
$ 89.91
$ 89.91 - $ 89.91
$ 89.91

Flexfab 5515-312, 3.13" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 80mm

Product Details The Flexfab 5515-312 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 112.39
$ 112.39 - $ 112.39
$ 112.39
$ 89.91
$ 89.91 - $ 89.91
$ 89.91
Save 20% Save %
Flexfab 5515-287, 2.88" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 73mm
Save 20% Save %
$ 104.49
$ 104.49 - $ 104.49
$ 104.49
$ 83.59
$ 83.59 - $ 83.59
$ 83.59

Flexfab 5515-287, 2.88" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 73mm

Product Details The Flexfab 5515-287 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 104.49
$ 104.49 - $ 104.49
$ 104.49
$ 83.59
$ 83.59 - $ 83.59
$ 83.59
Save 20% Save %
Flexfab 5515-262, 2.63" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 67mm
Save 20% Save %
$ 114.69
$ 114.69 - $ 114.69
$ 114.69
$ 91.75
$ 91.75 - $ 91.75
$ 91.75

Flexfab 5515-262, 2.63" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 67mm

Product Details The Flexfab 5515-262 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 114.69
$ 114.69 - $ 114.69
$ 114.69
$ 91.75
$ 91.75 - $ 91.75
$ 91.75
Save 20% Save %
Flexfab 5515-162, 1.63" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 41mm
Save 20% Save %
$ 81.29
$ 81.29 - $ 81.29
$ 81.29
$ 65.03
$ 65.03 - $ 65.03
$ 65.03

Flexfab 5515-162, 1.63" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 41mm

Product Details The Flexfab 5515-162 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 81.29
$ 81.29 - $ 81.29
$ 81.29
$ 65.03
$ 65.03 - $ 65.03
$ 65.03
Save 20% Save %
Flexfab 5515-138, 1.38" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 35mm
Save 20% Save %
$ 62.59
$ 62.59 - $ 62.59
$ 62.59
$ 50.07
$ 50.07 - $ 50.07
$ 50.07

Flexfab 5515-138, 1.38" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 35mm

Product Details The Flexfab 5515-138 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 62.59
$ 62.59 - $ 62.59
$ 62.59
$ 50.07
$ 50.07 - $ 50.07
$ 50.07
Save 20% Save %
Flexfab 5515-087, 0.88" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 22mm
Save 20% Save %
$ 57.79
$ 57.79 - $ 57.79
$ 57.79
$ 46.23
$ 46.23 - $ 46.23
$ 46.23

Flexfab 5515-087, 0.88" X 3 ft, 3-Ply Blue Silicone Coolant Hose, 22mm

Product Details The Flexfab 5515-087 is a blue silicone, 3-ply polyester hose engineered for demanding engine environments. It resists hardening, c...

View full details
$ 57.79
$ 57.79 - $ 57.79
$ 57.79
$ 46.23
$ 46.23 - $ 46.23
$ 46.23
Save 20% Save %

Request a Quote

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