This piston is a critical component within Wabco air dryer systems, functioning as a key element in maintaining air brake performance. It is used in the compression and delivery of air within the air brake system, ensuring reliable stopping power for commercial vehicles. This piston is manufactured to OE specification, guaranteeing a precise fit and consistent performance. Its dimensions are 27 x 30 x 27 mm, and the MPN is 4324106224. This component provides enhanced durability and reliable operation, contributing to the overall safety and efficiency of the braking system. This little guy actually does a pretty simple job, but it’s key to keeping your air brake system working right. Basically, it moves back and forth inside the air dryer cylinder. That movement compresses the air, pushing moisture out and then expelling it through the drain valve. It’s kind of like squeezing water out of a sponge – the piston does the squeezing. It also helps regulate the airflow through the system. It lives inside the air dryer, which is part of your air brake system. The air dryer’s job is to clean and dry the compressed air before it gets to your brakes. Think of it like a filter and a water separator all in one. The piston is a core component that makes that drying happen. Without it moving properly, the air stays full of water and oil, and that messes everything up. You'll find it connected to the connecting rod, and that's what translates the air compressor's motion into the piston’s back – and – forth action. Moisture in your air brakes is a really big deal. It can corrode brake lines, freeze up in cold weather, and generally just reduce the stopping power. This piston helps get rid of that moisture before it causes trouble. It acts like a shield, protecting the rest of your air brake system from damage. You’ll notice if this piston starts to fail because you’ll likely get a build – up of water in the air tanks, and that’ll trigger your brake warning light. You can find a replacement piston – we stock them at Fixparts Online, along with the whole air dryer if you need it – and replacing it is a pretty straightforward job for a mechanic. Ignoring a bad piston can lead to seriously unsafe braking, so it’s definitely something you want to address when you notice a problem. Your satisfaction is our priority: Piston (MPN 4324106224) includes a 12-month warranty!

About Wabco

WABCO specializes in air braking systems, EBS, ABS, ADAS, and trailer control systems.

Why Choose Wabco?

• Wabco parts are known for lasting a long time, saving you money on repairs in the long run. • We have a huge selection of parts, covering many different makes and models of vehicles. • Our parts are made to meet or beat the quality of original equipment, so you can trust their performance. • Wabco offers great customer support to help you find the right parts and answer any questions you may have. Wabco – trusted quality, available at FixParts Online!