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Flex Technologies HHB-075-250 Black Silicone Heater Hose – 3/4 in I.D. 250 Foot Roll
Flex Technologies HHB-075-250 Black Silicone Heater Hose – 3/4 in I.D. 250 Foot Roll
Regular price
$921.43
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For bulk pricing or questions regarding availability please contact us.
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Quality replacement silicone heater hose for heavy-duty and industrial applications. The Flex Technologies HHB-075-250 is a 250-foot continuous roll of 3/4-inch I.D. black silicone heater hose, ideal for fleet maintenance shops and large-scale coolant system repairs. Polyester-reinforced construction delivers high burst strength and excellent resistance to coolant additives, cracking, aging, and ozone.
Signs You Need New Heater Hose
- Visible cracking, swelling, or soft spots along existing hose
- Coolant leaks at heater hose connections
- Reduced cabin heat output due to restricted coolant flow
- Hardened or brittle hose that no longer flexes without cracking
Specifications
| Manufacturer | Flex Technologies |
|---|---|
| Part Number | HHB-075-250 |
| Part Type | Silicone Heater Hose – Bulk Roll |
| Inside Diameter | 3/4 in (0.750 in / 19 mm) |
| Outside Diameter | 1.07 in |
| Wall Thickness | 0.160 in |
| Roll Length | 250 feet |
| Color | Black |
| Tube Material | Silicone |
| Cover Material | Silicone |
| Reinforcement | Polyester Braid |
| Max Working Pressure | 83 psi @ 70°F |
| Temperature Range | -65°F to 350°F |
| Standards | SAE J20 R3 |
| Clamps Included | No |
Cross References
This part replaces or is equivalent to the following part numbers:
- Flex Technologies: HH-075 (base SKU, per-foot), HHB-075 (black variant base SKU)
Applications
This silicone heater hose is a universal-fit product suitable for any vehicle or equipment requiring 3/4-inch I.D. heater hose, including:
- Heavy-duty diesel trucks — all makes and models
- Medium-duty commercial vehicles
- School buses and transit buses
- Agricultural and construction equipment
- Marine engines and industrial machinery
Silicone hose is compatible with water and antifreeze/coolant. Not compatible with fuel or oil. Cut to desired length from the roll and secure with appropriate hose clamps (sold separately).