Wabco 9254880010 Tristop Cylinder Disc

Description

The Wabco 9254880010 Tristop-Cylinder Disc G-14/24 HFL3 is a critical component within air brake systems, specifically functioning as a brake actuator. It's designed for use in heavy-duty vehicle applications where reliable and efficient braking performance is paramount. This disc-type actuator converts air pressure into mechanical force to activate the brakes. Its robust design and OE specification ensure optimal compatibility and performance. Measuring 198 x 187 x 408 mm, the actuator features a stroke of 64/64 mm, an output force of 6920 N, and operates effectively within a temperature range of -40°C to +80°C. Key parameters include M16 x 1.5 bolt threads, a 120.6 mm bolt spacing, and M22 x 1.5 port threads. The actuator boasts a release pressure of 6.1 bar and a return-spring force of 220 N, contributing to precise and responsive braking control.

Key Features & Benefits

This little disc is a key part of how your air brakes actually work. Essentially, it controls the airflow within the brake actuator. It shifts back and forth, opening and closing ports to let air into and out of the chambers that push your brakes on and off. It manages the timing of the air release and application, making sure everything happens smoothly and in the right order. It's a pretty simple part mechanically, but it's vital to the system's operation. Think of it as a traffic controller for the air in your braking system. It sits inside the brake actuator—that’s the part that actually pushes on the brake chambers—and directs where the air goes. When you hit the brakes, the air needs to get to the chambers quickly. When you let off the brakes, the air needs to release quickly. This disc is what makes that happen reliably. It’s part of what gives you a firm, consistent brake pedal feel.

Symptoms, Risks & Replacements

Without a good cylinder disc, your brakes won’t operate properly. You might get slow response, uneven braking, or even a complete failure to hold air pressure. It’s a wear item, so over time it can get scored or worn, throwing off the timing and leading to those issues. You'll notice if it starts to fail—probably as a soft or spongy brake pedal, or maybe even brakes that drag. It's a relatively inexpensive part to replace, and it acts like a shield against bigger, more expensive brake system repairs. We carry a good selection of these at Fixparts Online if you’re looking. Replacing it when it's showing wear is a lot cheaper than dealing with a faulty brake system down the road.

Warranty Information

Wabco Tristop Cylinder Disc (MPN 9254880010) comes with a 1-year warranty.