Wabco 4214290020 Piston Cylinder

Description

The Wabco 4214290020 Piston Cylinder is a critical component within brake control systems, specifically functioning as a slave cylinder. It's designed to convert hydraulic pressure into linear motion, enabling brake actuation. This cylinder is commonly found in applications requiring reliable and precise braking performance. Constructed to OE specification, this single-acting cylinder boasts a piston diameter of 28.0 mm and a stroke of 70.0 mm, delivering a piston force of 320 N. Its dimensions are 40 x 42 x 194 mm, and it features M10 x 1 port threads and a push-rod thread of M8. With a maximum operating pressure of 10.0 bar and a temperature range of -30°C to +80°C, this cylinder ensures consistent and dependable braking function under varied conditions.

Key Features & Benefits

This part basically takes the fluid pressure from your master cylinder – when you push the brake pedal – and turns it into mechanical force. Inside, there’s a piston that moves when hydraulic pressure comes in, and that movement pushes on the brake shoes or pads, making them press against the brake drum or rotor. It's really just a hydraulic amplifier, taking a little foot pressure and turning it into a lot of stopping power at each wheel. It’s a critical part of your braking system, naturally. It lives at each wheel, and you'll have one for each brake. So, if you’re working on the rear brakes, which often use wheel cylinders to actuate the shoes, this is what you’re dealing with. It receives the signal from when you hit the pedal and does the actual work of squeezing the brakes.

Symptoms, Risks & Replacements

Well, without it, you wouldn’t be able to stop. If it fails, you'll notice if you're having trouble stopping – it might feel spongy, or the car might pull to one side. A leak in the cylinder means you’re losing brake fluid, and losing braking power, obviously. It essentially acts like a shield, protecting your ability to slow down and stay safe. You can find these pretty easily online, even places like Fixparts Online have a good selection. Replacing a worn cylinder is a straightforward repair, but definitely important to keep your brakes working correctly.

Warranty Information

Wabco Piston Cylinder (MPN 4214290020) comes with a 1-year warranty.