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Severe Service Straight Silicone Coolant Hose

Many heavy-duty vehicles manufactured in 2007 or later have advanced emissions systems that run hotter under the hood than previous models, requiring the use of a silicone coolant hose to maintain optimal temperatures. The Gates® Silicone Coolant Hose is a high-quality 4-ply silicone hose that was built to excel when the going gets hot.

  • Extreme temperature capabilities, running from -65°F to +347°F (-55°C to +175°C) continuous to +500°F (260°C) for Aramid reinforcement
  • SAE 20R1 Class A, standard wall
  • Easily identified with an orange silicone tube, reinforced with four plies of Aramid fabric and a glossy blue silicone cover
  • Use on hose bead fitting fastened with hose clamps

All Parts

1-9 of 9 Items
Part # Product # Description Max W.P. (psi) Max W.P. (bar) Hose I.D. (in) Hose I.D. (mm) Hose O.D. (in) Hose O.D. (mm) Vac. (inHg) MBR (in) Wt. Per ft Len. (ft)
28225 41711000 28225 1" I.D. 500 SEVERE SRVC 1 25 1.25
28226 41711016 28226 1.25" I.D. 500 SEVERE SRVC 1.25 32 1.5
28227 41711017 28227 1.5" I.D. 500 SEVERE SRVC 1.5 38 1.75
28228 41711018 28228 1.75" I.D. 500 SEVERE SRVC 1.75 44 2
28229 41711019 28229 2" I.D. 500 SEVERE SRVC 2 51 2.25
28230 41711024 28230 2.25" I.D. 500 SEVERE SRVC 2.25 57 2.5
28231 41711025 28231 2.5" I.D. 500 SEVERE SRVC 2.5 64 2.75
28232 41711026 28232 2.75" I.D. 500 SEVERE SRVC 2.75 70 3
28233 41711027 28233 3" I.D. 500 SEVERE SRVC 3 76 3.25
1-9 of 9 Items

Gates Gets Your Vehicles Back On The Road. And Keeps Them There.

Gates® engineers our automotive aftermarket parts in partnership with the top OEMs around the world, so you can trust premium-grade automotive and light truck parts that are built to last.

Bring on the Heat.

When heavy-duty and fleet vehicles began implementing Advanced Emissions Systems into their engines, the under-hood temperatures rose to a point where existing coolant hoses couldn’t handle such temperatures. Gates® developed the Sever Service Silicone Coolant Hose to go in and keep working in temperatures up to 500°F.