This Wabco Insert Sleeve is a critical component within air brake systems. It's used in the air lines to ensure a secure and leak-proof connection. This part is manufactured to OE specification, guaranteeing a precise fit and reliable performance that meets or exceeds original equipment standards. Its robust construction enhances the durability and longevity of the air brake system, contributing to safer and more efficient vehicle operation. These are basically little brass or steel rings that go inside air brake fittings—where the air lines connect. They create a really tight seal. Think of it like a gasket, but for threaded connections. They compensate for wear and tear on those threads, and they help prevent leaks. They don’t really do anything active, they're more about maintaining a solid connection. In your air brake system, everything’s pressurized, right? These sleeves are found wherever you have those air lines screwing into a fitting, usually on the air dryer, reservoirs, or valves. They sit inside the fitting and the air line connects to them, creating that airtight connection. Without them, you’re relying on the threads alone to hold everything together, and that’s asking for trouble. They’re a small part, but they’re everywhere in an air brake system. Air brakes are, obviously, really critical for safety. A leak, even a small one, can reduce your braking power, and that’s not something you want to mess with. These sleeves act like a shield against those leaks, keeping the system pressurized and working as it should. You’ll notice if one is bad, usually by a hiss of air or a drop in your air pressure gauge. They’re cheap to replace, honestly—much cheaper than dealing with a brake failure. You can find them pretty easily at places like Fixparts Online, or here of course. It's a good idea to replace them any time you disconnect an air line, just as a preventative measure. More than just a part: Insert Sleeve (MPN 8930405444) includes a 12-month warranty!

About Wabco

WABCO specializes in air braking systems, EBS, ABS, ADAS, and trailer control systems.

Why Choose Wabco?

• Wabco parts are known for lasting a long time, so you won't have to replace them as often. • We have a huge selection of parts, covering many different makes and models of vehicles. • Our parts are made to meet or beat the quality of original equipment, without the high price tag. • Wabco has been a trusted name in auto parts for years, with a reputation for reliability and performance. Performance you can rely on – Wabco parts from FixParts Online.