Wabco 9325001120 Air Processing Unit

Description

The Wabco 9325001120 Air Processing Unit is a critical component in heavy-duty air brake systems, responsible for filtering, regulating, and distributing compressed air to the vehicle's brakes and other pneumatic systems. It is commonly used in trucks, buses, and trailers to ensure reliable and efficient braking performance. This unit features an air dryer, backflow prevention, and precise pressure regulation. It operates within a temperature range of -40°C to +65°C and supports a maximum operating pressure of 13.0 bar, ensuring consistent performance in demanding conditions. The unit's dimensions are 210 x 280 x 310 mm, and it utilizes M22 x 1.5 and M12 x 1.5 port threads for secure connections. It is designed to OE specification for optimal compatibility and reliability.

Key Features & Benefits

This thing is basically the heart of your air brake system. It does a few key jobs. First, it filters the air coming into the system, gets rid of dirt and moisture. Then, it regulates the air pressure, making sure everything gets the right amount. It also includes a safety valve which releases air if the pressure gets too high. Think of it like a little air management center. It’s positioned right where the air comes into the brake system, usually near the air compressor. From there, that clean, regulated air goes out to all the air brakes – the service brakes you use to stop, the trailer brakes if you're towing, and any auxiliary things that run on air. It’s a central point, everything relies on it being good.

Symptoms, Risks & Replacements

Honestly, this is one of those parts you really don't want to mess around with. If it fails, you can lose braking power, plain and simple. The filter keeps contaminants out which would damage other expensive parts over time. The regulator makes sure your brakes apply smoothly and reliably. And that safety valve? That acts like a shield, preventing the system from being over – pressurized and potentially failing catastrophically. You’ll notice if it’s going bad – things like longer brake engagement times, inconsistent brake feel, or even an air brake warning light coming on. If you're seeing any of that, it’s time to check it out. You can find a good replacement unit at places like Fixparts Online, or of course we can order one for you here.

Warranty Information

Wabco Air Processing Unit (MPN 9325001120) comes with a 1-year warranty.