Wabco 4420406020 Solenoid Valve

Description

The Wabco 4420406020 is a solenoid valve used within air brake systems, specifically for ECAS applications. This 3/2 type valve controls the flow of air, enabling critical functions within the braking system. Its robust design, featuring an IP 6K6A protection class and operating within a temperature range of -40°C to +80°C, ensures reliable performance in demanding environments. The valve features an M27 x 1 electrical connection and is rated for a maximum operating pressure of 13.0 bar. It measures 30 x 47 x 64 mm.

Key Features & Benefits

This valve basically controls the flow of compressed air in your air brake system. It's an electrically operated switch, think of it like a little gatekeeper. When it gets a signal, it opens or closes, letting air through or stopping it. It can do a few different things depending on the specific valve – it might release the brakes, apply them, or control things like the parking brake. Some valves manage the air supply to the suspension, too. In your braking system, it’s a critical part of how you actually stop. The driver’s pedal sends a signal, and that signal then activates the solenoid valve. That valve then directs the compressed air to the brake chambers, which push out the brake shoes or pads. It's a key link between what you do with your foot and the brakes engaging. It’s also used in things like air horns, or automatic leveling systems on some trucks or RVs.

Symptoms, Risks & Replacements

Well, without it, your brakes won’t work properly, or at all. It’s a safety item, plain and simple. You’ll notice if a solenoid valve is failing because your brakes might drag, feel spongy, or just not hold properly. Ignoring a bad solenoid valve is a really bad idea. They're pretty reliable, but over time, especially with dirt and moisture in the air lines, they can get stuck or fail. We carry a good selection here, and you can find a lot of options at Fixparts Online too, if you like browsing that way. Just make sure you get the right one for your vehicle – there are different types and sizes.

Warranty Information

Wabco Solenoid Valve (MPN 4420406020) comes with a 1-year warranty.