Wabco 4324159040 Air Dryer

Description

The Wabco 4324159040 Air Dryer is a critical component in heavy-duty vehicle air brake systems, responsible for removing moisture and contaminants from the compressed air supply. It's used in trucks, buses, and other commercial vehicles to ensure reliable braking performance and prevent corrosion within the air system. This device features a desiccant cartridge for effective moisture absorption, operates with compressed air cooling, and is designed to OE specifications. With dimensions of 333 x 177 x 207 mm, this air dryer maintains optimal air quality with a calculated volume of 12.2, cut-out pressure of 8.5±0.2 bar, and a maximum operating pressure of 10.0 bar. It features M22 x 1.5 and 1/4 - 18 NPTF port threads, and operates within a temperature range of -40°C to +65°C at 24V.

Key Features & Benefits

This thing basically cleans up the compressed air that goes into your vehicle's air brake system. Air gets pulled in from outside, and naturally, it has moisture, oil mist, and other contaminants in it. The air dryer filters all that stuff out and dries the air before it gets to your brake components. It does this using a desiccant, which is a material that sucks up the moisture like a sponge. It also has a filter element that catches the oil and larger particles. It’s a key part of your entire air brake system. The compressor makes the air, the air dryer cleans and dries it, and then that clean, dry air is stored in the reservoirs. From there, it’s used to apply your brakes, and control other air – powered systems on the vehicle. Think of it as a crucial step in preparing the air before it gets where it needs to go – it doesn't make the air work, but it makes sure the air can work properly.

Symptoms, Risks & Replacements

Moisture in the air brake system is a big problem. It can corrode lines and valves, and in freezing temperatures, it can actually freeze up and block the whole system. That’s obviously a safety issue. Beyond that, oil and contaminants can damage the seals and components, leading to leaks and reduced brake performance. You’ll notice if it's failing if your brakes feel spongy or if your air pressure builds slowly. A good air dryer keeps everything running smoothly, helps prevent costly repairs, and most importantly, keeps you safe on the road. You can find a replacement for many makes and models over at Fixparts Online, or we can check our stock here as well. It’s a relatively inexpensive part considering how much it protects the rest of your air brake system.

Warranty Information

Wabco Air Dryer (MPN 4324159040) comes with a 1-year warranty.