Wabco 9253761250 Double Diaphragm Tristop

Description

The Wabco 9253761250 Double Diaphragm Tristop 24/30 is a critical component within air brake systems, specifically functioning as a brake actuator. This device is designed for use in heavy-duty vehicles and trailers, converting air pressure into mechanical force to apply the brakes. The Tristop design ensures reliable and consistent braking performance, contributing to enhanced safety and control. This actuator measures 210 x 220 x 500 mm and features a cam-operated design for precise control, with parameters including bolt lengths of 42.5 mm (M16 x 1.5 thread), a 75/75 mm stroke, and a maximum operating pressure of 10.2/8.5 bar. It is an OE specification part, ensuring compatibility and performance.

Key Features & Benefits

This thing basically controls the air brakes on your vehicle. It takes the signal from your brake pedal and translates that into air pressure that actually clamps down on the brakes. The ‘double diaphragm’ part means it’s got two flexible membranes inside, which give it a little extra power and responsiveness. The ‘Tristop’ refers to a specific design that helps control the application and release of the brakes – it’s a feature that adds precision and prevents things like brake drag. It handles service brake application, spring brake application (if your vehicle has those), and parking brake functions, all within one unit. Think of it as the central command for your air brake system. It gets the signal from your foot, boosts the air pressure, and sends it to the brake chambers at each wheel. It’s a crucial link in stopping your vehicle safely and efficiently. It’s usually found mounted somewhere near the brake chamber lines, often under the hood or chassis.

Symptoms, Risks & Replacements

This isn’t something you want to mess around with. If it fails, you lose braking power. It acts like a shield, protecting the rest of your air brake system from damage and ensuring consistent, reliable performance. You’ll notice if it's starting to go bad – things like a longer brake pedal travel, brakes dragging, or even difficulty holding a parking brake. It's a safety item, plain and simple. You can find these pretty easily; a place like Fixparts Online has a good selection, and replacing it keeps everything working like it should. It’s definitely one of those parts where getting a good quality one is worth it for peace of mind.

Warranty Information

Wabco Double Diaphragm Tristop (MPN 9253761250) comes with a 1-year warranty.