James Dawson

/ Products / 4 PLY Coolant Hose

Features & Benefits

  • Configuration: 4 Ply silicone polyester-reinforced
  • Recommended for temperatures: -65ºF to 350ºF (-54ºC to +175ºC)
  • Resistant to: electrochemical degradation, UV and ozone
  • Available in larger diameters above 6” (152.40mm)
  • Available colours: blue outer & blue inner or blue outer & red inner

Meets and exceeds all performance and physical characteristics of SAE J20 R1, SAE J20 R1 H.T. Class A, TMC RP303B Grade I and Grade II, Mil Spec A-A-52426 and various heavy-duty OEM requirements. 

4 PLY Coolant Hose

Silicone coolant hoses are used to transport coolant within diesel engines. Engineered to provide the maximum performance capabilities whilst extending service life for reduced maintenance. Available with an Aramid reinforcement for higher temperature applications and additional plies available for higher pressure applications.

The critical design benefit is determined by laboratory load movement trials. The functional integrity is approved after accelerated dynamic testing, which simulates vehicle operating conditions.

Designed to offer optimum durability and flexibility over extended service periods whilst operating at extremes of temperature.

Continuous progress resulting in improved methods of manufacture and materials.

Innovative product development ensures that your products are available in advance of all new emission regulations.

For More Information

UK: +44 (0)1522 781800
USA: + 1 (716) 903 1085
China:  + 86 1366 159 0273

Silicone Coolant Applications

Silicone out performs conventional hose materials in terms of optimum reliability and long life on engine, radiator, heater and other coolant handling applications.

In house accelerated ageing and dynamic testing of finished hoses replicate long term application which means you can fit it and forget it. 

Mandrel wrapped format to conform to the requeremnts of SAE J20 R1 (standard wall) class ‘A’. Alternatively in single ply construction, manufactured by continuous methods, to conform to the requirements of SAE J20 R3 and R4 class ‘A’.

Materials are chosen by technical engineers based on the application requirements and specifications.