This piston is a critical component within air brake systems, specifically functioning as part of protection valves. It's designed to maintain consistent air pressure and ensure reliable braking performance in heavy-duty vehicles. This Wabco piston, with MPN 4341006252, measures 20 x 15 x 15 mm. Constructed to OE specification, this piston guarantees a precise fit and dependable operation, contributing to enhanced safety and reduced maintenance costs for air brake systems. This piston actually does a pretty simple job, but it’s critical. It moves inside the valve body, responding to air pressure changes. Essentially, it opens and closes ports inside the valve, controlling the flow of compressed air to your brake chambers. It’s what allows the valve to react to signals from your foot pedal or automatic controls. It’s a mechanical switch, if you will, triggered by air. Think of your air brake system as a team. The piston in this protection valve is one of the frontline players. It sits within the valve, which is designed to protect the entire air brake system from overpressure, basically acting like a shield. When pressure gets too high – maybe from a malfunctioning compressor or a problem in the system – the valve activates, and this piston is the part that makes it activate, releasing excess pressure to keep everything safe. It’s a key part of the safety net. Without a functioning piston inside this valve, the whole safety mechanism fails. You’ll notice if this part is bad usually because your brakes might feel spongy, slow to respond, or, in a worst – case scenario, not engage fully. It's a critical safety component, and a failing one can lead to serious issues. You can find a replacement for pretty much any vehicle over at Fixparts Online, and it’s something you definitely want to address promptly if you suspect a problem. Don't mess around with brakes, you know? It's better to be safe than sorry. We’ve got you covered: Piston (MPN 4341006252) includes a 12-month warranty!

About Wabco

WABCO is a global innovator in braking, stability, and suspension systems for commercial vehicles, enhancing safety and efficiency.

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, so you’re likely to find exactly what you need for your vehicle. • Our parts meet or exceed industry standards, giving you peace of mind on the road. • Wabco has been a trusted name in auto parts for decades, with a reputation for quality and reliability. Drive with confidence – choose Wabco parts at FixParts Online.