Wabco 9325070020 Air Processing Unit

Description

The Wabco 9325070020 Air Processing Unit is a critical component in heavy-duty air brake systems, responsible for conditioning and delivering clean, dry air to the braking system. It is used in commercial vehicles to ensure reliable and responsive braking performance. This unit features a robust design and precise engineering for optimal efficiency and durability. Its dimensions are 200 x 330 x 350 mm, and it operates within a temperature range of -40°C to +65°C. Key parameters include a back flow rate of 0.7 bar, a cut-out pressure of 11.1 bar, and a maximum operating pressure of 13.0 bar. The silencer included is 432 407 070 0 and the air dryer is 4324171022. It includes retrofittable heating connection functionality.

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 9325070020) comes with a 1-year warranty.