Description
Flex Technologies silicone heater hose roll, 1-1/4″ (1.25″) inside diameter, black, supplied as a 250-foot continuous length. Five-ply silicone with polyester-fabric reinforcement, rated -65°F to 350°F continuous for engine coolant and heater-line service.
Specifications
| Manufacturer | Flex Technologies |
|---|---|
| Part Type | Silicone Heater Hose (Roll) |
| Inside Diameter | 1-1/4″ (1.25″) |
| Wall Thickness | 0.20″ |
| Length | 250 feet |
| Burst Pressure | 125 psi |
| Color | Black |
| Construction | 5-Ply Silicone, Polyester Fabric Reinforced |
| Temperature Range | -65°F to 350°F Continuous |
| Standards | SAE J20 R3 Class A, TMC RP303B Class I, Mil-Spec A-A-52426 |
| Resistance | Ozone and oil-splash resistant |
Applications
Silicone heater hose is used for cab and sleeper heater lines, low-pressure coolant branches, and any application where rubber EPDM heater hose would degrade under high under-hood temperatures:
- Heavy-duty truck cab heater and APU coolant lines
- Sleeper bunk heater plumbing
- School bus, transit bus, and motorcoach heater systems
- Marine cabin heater and engine pre-heat plumbing
- Industrial and stationary engine coolant lines
Verify inside diameter, length, and hose orientation before installation. Use clamps rated for silicone hose; cut clean and square.
