ProVia Spiral Air Hose PRO5210020 Coiled Tractor Trailer Air Line for Heavy Duty Truck Air Brake System

The ProVia ProVia Spiral Air Hose (part number PRO5210020) is a replacement component for the air brake and air suspension systems of heavy-duty trucks, buses and semi-trailers. It is built to original equipment specification from quality materials, so it installs on the original mounting points and performs reliably throughout the service life of the vehicle. Key ratings include Max Working Pressure 13 bar, temperature range -40°C ~ +80°C.

The coiled spring shape keeps the hose tidy and out of the way, yet stretches smoothly as the combination turns, so it will not kink or snag. A wear-resistant outer layer and brass end fittings stand up to constant flexing, road grit and weather, and the anti-freezing design keeps air flowing in cold conditions.

Every unit is manufactured to original equipment specification and inspected before it leaves the factory, so it matches the fit, function and durability of the original part. Sealed, vibration-tested construction keeps performance stable in the heat, dust, road salt and constant vibration found on commercial vehicles, and standard interfaces make installation and maintenance straightforward. Spare parts, technical data and fitting advice are available on request.

• Max Working pressure:13 Bar: Temperature range -40°C ~ +80°C.
• Material PA12: 4 meters length, size 12*1.5mm, fitted with brass end fittings.
• Coiled Spring Structure: Flexible and stretchable, anti-kink, wear-resistant outer layer.
• Connects the Air Brake Line of Tractor and Semi-trailer: Stable air transmission, anti-freezing.
• OE Grade Quality: Manufactured to original equipment specification for the correct fit, function and durability.

The hose connects the air brake lines between a tractor and its semi-trailer, carrying the supply and control air that operates the trailer brakes. It is the correct replacement for a kinked, cracked or leaking original hose and is widely used by fleets and workshops.

Every unit is packed in a neutral export carton with foam protection so that ports, connectors and levers arrive free from damage. OEM cartons and private labels are available on request, and each carton is labelled with the part number for simple warehouse handling. All units are produced to original equipment specification and inspected before shipment; a twelve-month quality warranty and full technical support are provided, and mixed containers can be supplied for distributors and repair workshops. Please contact us for samples, volume discount pricing and confirmed lead times.