These couplings basically connect sections of air brake line together. They do exactly what they sound like – you push the lines into them and they create an airtight seal. They’re designed for quick, easy connections and disconnections, much simpler than threading everything. They handle the compressed air that runs your brakes, so it's all about secure, leak – free connections. Think of it like a link in a chain. Your whole air brake system relies on pressurized air getting from the compressor to the brake chambers at each wheel. This coupling is one of those connections that keeps that air flowing. You’ll find them throughout the air lines, connecting various components like the compressor, air dryer, reservoirs, and ultimately, to the brakes themselves. Well, if one of these leaks, or comes apart, you lose air pressure. That’s a big deal with air brakes. You’ll notice if you start losing pressure because your gauge will drop and you might even hear a hiss. Losing air pressure means reduced braking power, and that's obviously dangerous. These couplings are designed to be really reliable and prevent those leaks. They act like a shield against air escaping. You can find these pretty easily at places like Fixparts Online, and replacing a faulty one is usually a straightforward job. They're a small part, but a critical one for safety. Wabco quality assured: Push-In Coupling (MPN 8931040574) includes a 12-month warranty!

About Wabco

WABCO is a global innovator in braking, stability, and suspension systems for commercial vehicles, enhancing safety and efficiency.

Why Choose Wabco?

• Wabco parts are built to last, meaning fewer repairs and more time on the road. • We offer a wide range of parts for many different vehicles – chances are we have what you need. • Our parts meet or exceed industry standards, giving you reliable performance you can trust. • Wabco has a long history of serving professionals and DIYers alike with quality auto parts and excellent customer support. Performance you can rely on – Wabco parts from FixParts Online.