Wabco 4253070200 Spring Brake Cylinder

Description

The Wabco 4253070200 Spring Brake Cylinder is a critical component within air brake systems, responsible for converting air pressure into mechanical force to actuate the brakes. Commonly used in commercial vehicles and trailers, this cylinder ensures reliable and efficient braking performance. This device is designed to meet OE specifications and operates via a cam mechanism. Its dimensions are 154 x 132 x 394 mm, featuring a 100.0 mm diameter and an 80.0 mm stroke. The cylinder offers robust performance with a maximum operating pressure of 8.0 bar, an output force of 5000 N, and includes features such as fording ability. It utilizes M16 x 1.5 port threads and a push-rod thread of M16 x 1.5, operating effectively within a temperature range of -40°C to +80°C.

Key Features & Benefits

Basically, this cylinder converts air pressure into mechanical force. It pushes a rod out when air is applied, and that rod is what actually activates the brakes – specifically the spring brakes on your vehicle. It also holds those brakes in when the air pressure is released, using an internal spring. It’s a bit like a muscle, flexing and retracting with air pressure. Think of it as a key part of your safety system. It's primarily used with spring brakes, which are a fail – safe. These brakes automatically engage if you lose air pressure – say, a leak in the system or if the engine quits. So this cylinder controls when those spring brakes stay released during normal driving, and when they need to apply if something goes wrong. You'll find them mainly on heavier vehicles - trucks, trailers, buses - anything where a runaway situation would be especially dangerous.

Symptoms, Risks & Replacements

It’s super important because it’s a critical part of that fail – safe system. If this cylinder fails, your spring brakes might not release properly when you want them to, or they might not apply when you need them to. You’ll notice if it's failing – things like brakes dragging, difficulty releasing brakes, or even the brakes applying themselves unexpectedly. A faulty spring brake cylinder can really affect stopping distance and vehicle control. We carry a good selection of these at Fixparts Online, and we always recommend replacing these in pairs – if one goes, the other is likely not far behind.

Warranty Information

Wabco Spring Brake Cylinder (MPN 4253070200) comes with a 1-year warranty.