WABCO Air Processing Unit (APU) 9325001100 Integrated Air Dryer Valve Unit for Heavy Duty Truck Air Brake System

The WABCO WABCO Air Processing Unit (APU) (part number 9325001100) 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 Rated Voltage 24V, Max Working Pressure 13 bar, temperature range -40°C ~ +80°C.

Combining air drying and multi-circuit protection in one housing saves space and simplifies the air system. The built-in pressure sensor, automatic purge and regeneration keep compressed air dry and maintain safe pressure in every circuit, while remote diagnostics and a compact footprint make installation and servicing straightforward.

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.

• Rated voltage:24V: Max working pressure:13 bar, temperature range -40°C ~ +80°C.
• Port Thread M22*1.5 for Air Inlet and Main Outlets: M12*1.5 auxiliary port.
• Built-in Pressure Sensor: Automatic purge and regeneration function.
• It Dries Compressed Air, Removes Moisture And: Impurities, and protects multiple brake circuits If one circuit fails, others still work normally.
• OE Original Quality: Compact integrated design, saves installation space.
• Fit for Mercedes-Benz Actros: FAW Jiefang and other heavy trucks.

The unit is used on the air systems of heavy trucks, buses and semi-trailers, where it dries the compressed air and protects several brake circuits at once. It is a natural replacement for the original equipment assembly and is well suited to high-mileage fleets that demand long, predictable service intervals.

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.