19mm (3/4") Blue Silicone Heater Hose

19mm (3/4") blue silicone heater hose (part SILHH19) is one of the two most requested sizes, used for radiator and intercooler connections on cars, trucks and buses, and the common replacement when factory rubber has gone hard. Silicone holds its properties through heat cycling where rubber hardens and splits, which is why it is specified on vehicles and plant that cannot afford a coolant failure.

Key features

• Nominal inside diameter 19mm (3/4")
• Meets or exceeds SAE J20R1, Class A
• Temperature range -55°C to +180°C
• High performance silicone with one ply polyester fabric reinforcement
• Ozone resistant and oil splash resistant
• Corrosion resistant and stable through repeated heat cycles
• Sold by the metre or in coils (7.5 m and 91.4 m)
• Not suitable for fuel or oil transfer

Applications

• Radiator top and bottom hoses
• Intercooler and charge air piping
• Heater circuits on trucks and buses
• Marine engine cooling
• Mining and agricultural plant

Compatibility and fitting

• Sized on inside diameter: 19mm hose fits a 19mm spigot or outlet
• Use a smooth band or T-bolt clamp from the clamp range; silicone is softer than rubber and a perforated band can bite the wall
• For fuel lines use SAE 30R7 fuel hose, not silicone
• Matching silicone clamp kits are in the silicone hose range

Will it hold boost pressure?

For charge air use on a standard system it is well suited, being reinforced with one ply of polyester fabric. For high boost applications specify a multi ply silicone hose rated for the pressure.

Sizes from 6 mm to 25 mm are in the blue silicone heater hose range.

Dispatched from our Brisbane warehouse. Australia-wide delivery, or collect from the warehouse once your order is confirmed ready.