AutoSiliconeHoses Blue Silicone Coolant Hose 1 Metre – Reinforced SAE J20R3 – Various Sizes 6.5–102mm

This AutoSiliconeHoses Silicone Coolant Hose is a reinforced, heat-resistant hose designed for automotive cooling, motorsport and industrial fluid applications. Supplied in a 1 metre continuous length and available in a range of internal diameters from 6.5mm to 102mm, it provides a flexible and durable solution for coolant, water and suitable low-pressure air duties.

Manufactured from premium silicone inner and outer layers with multi-fabric polyester cord reinforcement, the hose combines flexibility with pressure stability. Depending on the selected diameter, the construction uses either 3-ply or 4-ply reinforcement, helping the hose maintain its shape during vibration, pressure pulsation and repeated heating and cooling cycles.

The smooth internal bore promotes efficient fluid flow through cooling systems, making the hose suitable for radiator connections, heater circuits, bypass lines and auxiliary cooling systems. Silicone construction also provides resistance to ozone, weathering and common under-bonnet conditions, making it well suited to automotive, commercial vehicle, motorsport and industrial installations.

Manufactured to SAE J20R3, the hose is rated for continuous temperatures from -50°C to +180°C, with short-duration peak temperatures up to +250°C. Working pressure ranges from approximately 2.8 bar to 9 bar depending on hose size, with minimum burst pressures from 4.5 bar to 27 bar and a stated 3:1 safety factor.

Key Features

• AutoSiliconeHoses reinforced silicone coolant hose
• Supplied in a 1 metre continuous length
• Available in various internal diameters from 6.5mm to 102mm
• Blue silicone construction
• Silicone inner and outer layers
• Multi-fabric polyester cord reinforcement
• 3-ply or 4-ply construction, depending on size
• Smooth internal bore for efficient fluid flow
• Designed for coolant and water applications
• Suitable for compatible low-pressure air duties
• Working pressure of 2.8–9 bar, size dependent
• Minimum burst pressure of 4.5–27 bar, size dependent
• Continuous temperature range of -50°C to +180°C
• Short peak temperature capability up to +250°C
• 3:1 safety factor
• Manufactured to SAE J20R3
• Suitable for automotive, motorsport and industrial applications

Specifications

• Brand: AutoSiliconeHoses
• Product Type: Silicone Coolant Hose
• Material: Silicone
• Inner Layer: Silicone
• Outer Layer: Silicone
• Reinforcement: Multi-Fabric Cord Layers
• Reinforcement Material: Polyester
• Colour: Blue
• Internal Diameter: 6.5mm–102mm depending on selected size
• Wall Thickness: 4.5mm for 6.5–48mm ID / 5.0mm for 51-102mm ID
• Number of Plies: 3-Ply for 6.5–48mm / 4-Ply for 51-102mm
• Working Pressure: 2.8–9 Bar depending on size
• Minimum Burst Pressure: 4.5–27 Bar depending on size
• Safety Factor: 3:1
• Temperature Rating: -50°C to +180°C
• Peak Temperature: +250°C
• Standard: SAE J20R3
• Overall Length: 1 Metre
• Hose Bore: Smooth
• Available Sizes: Various

Suitable Applications

• Engine cooling systems
• Radiator connections
• Radiator hoses
• Heater matrix / heater core connections
• Coolant lines
• Degas lines
• Coolant bypass lines
• Auxiliary cooling circuits
• Auxiliary pump connections
• Charge-air cooling auxiliary circuits
• Water transfer
• Compatible low-pressure air applications
• Cars
• Vans
• Commercial vehicles
• Motorsport vehicles
• Performance and modified vehicles
• Fleet maintenance
• Engine conversions
• Automotive cooling system upgrades
• Industrial cooling systems
• Industrial water transfer
• General engineering applications

Supplied as 1 metre continuous length of genuine AutoSiliconeHoses Blue Reinforced Silicone Coolant Hose in your selected internal diameter from 6.5mm to 102mm, manufactured with multi-fabric cord reinforcement and rated for continuous temperatures from -50°C to +180°C. Manufactured to SAE J20R3 for compatible automotive, motorsport and industrial coolant, water and low-pressure air applications.

Securely packaged and dispatched same working day if purchased by 1 p.m.