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Blue silicone coolant hose straight 36 inch length 2-1/2 inch diameter

Gates

Gates 24840 Silicone Coolant Hose Blue 2-1/2 in 36 in

SKU CH-N7HM-J8K51

A straight silicone coolant hose with a 2-1/2 in inside diameter and 36 in length, rated to 65 psi at 70 °F and a -70 to 350 °F temperature range, meeting SAE 20R1

  • Withstands extreme heat up to 350 °F
  • Remains flexible in severe cold down to -70 °F
  • Handles 65 psi working pressure at 70 °F
  • Meets SAE 20R1 industry standard
  • Blue silicone straight hose 36 in length

Gates 24840 Silicone Coolant Hose 2-1/2 in

This blue silicone coolant hose measures 36 inches in length with a 2-1/2 inch inside diameter. It is built to SAE 20R1 standards and rated for a maximum working pressure of 65 psi at 70 degrees Fahrenheit. The straight, bulk hose configuration suits custom routing in automotive cooling systems. Temperature range extends from -70 to 350 degrees Fahrenheit.

Silicone tube and cover materials

Both the inner tube and outer cover are constructed from silicone, providing consistent heat resistance and flexibility across the stated temperature range. The blue colour aids visual identification in complex engine bays. No additional fittings, clamps or installation hardware are included with the bulk hose.

Check hose routing and clamp compatibility

Verify that a 2-1/2 inch inside diameter matches the connection points on your vehicle before ordering. Ensure you have suitable clamps rated for 65 psi working pressure and the temperature extremes listed. The 36 inch length must accommodate your planned routing without excessive stretching or sharp bends. This product is not for applications requiring pre-formed elbows or smaller diameters.

Highlights

  • Withstands extreme heat up to 350 °F
  • Remains flexible in severe cold down to -70 °F
  • Handles 65 psi working pressure at 70 °F
  • Meets SAE 20R1 industry standard
  • Blue silicone straight hose 36 in length

Specifications

BrandGATES

Questions about this item

How often should I plan to replace the silicone coolant hose under normal service?

The hose meets SAE 20R1 and is rated for continuous use between –70 °F and 350 °F; inspect it at each coolant change and replace it if the silicone shows cracking, hardening or surface damage.

What is the maximum sustained pressure the 2-1/2 in hose can handle at operating temperature?

The maximum working pressure is 65 psi measured at 70 °F; pressure capacity decreases as temperature rises toward the 350 °F upper limit.

Does the blue silicone hose radiate noticeable heat or require extra shielding when the engine runs all day?

Silicone insulates better than rubber, so the outer surface stays cooler, but the hose will still reach the coolant temperature — up to 350 °F — so route it clear of components that cannot tolerate that heat.

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