Wabco 8931294022 Hose Barb

Description

This Wabco hose stud, also known as a hose barb (MPN 8931294022), is a critical component within air brake systems. It's used for secure and reliable fluid transfer in pneumatic lines. Specifically designed as a stud coupling, this component features a steel body and is compatible with a tube diameter of 11 x 3.5 and a hose nozzle diameter of 12 mm. With a maximum operating pressure of 10.0 bar and a temperature range of -40°C to +80°C, this hose nipple ensures robust performance under demanding conditions. Its M22 x 1.5 thread and 28.0 mm wrench size facilitate easy installation and maintenance. The dimensions of this component are 32 x 28 x 57 mm, and it meets OE specifications for guaranteed quality and compatibility.

Key Features & Benefits

These little guys are basically connectors. They’re designed to attach a flexible hose – usually an air brake hose – to a rigid pipe or another fitting. It’s got that barbed outer surface, that’s where the name comes from. The hose actually grips onto those barbs, and then you typically use a clamp to secure it even tighter. They come in different sizes to match the hose and the pipe it’s connecting to. Sometimes they have threads on one end to screw into a component, other times they just push into something. In a vehicle, you’ll find these most often in the air brake system. Think of it like this: the air compressor makes the air pressure, and that pressure needs to get to the brakes to actually stop the vehicle. The hoses carry the air, and the hose barbs are at either end, connecting those hoses to the compressor, the air tanks, the brake chambers… anywhere air needs to move in that system. You’ll also see them sometimes in coolant or fuel lines, but mainly it's air brakes on bigger vehicles.

Symptoms, Risks & Replacements

These are pretty critical. If one of these fails, or if it’s not fitted properly, you’re going to have an air leak. That leak reduces the air pressure available to your brakes. It’s a slow leak, maybe, but it can definitely affect stopping power. It acts like a shield preventing the hose from simply popping off under pressure. You’ll notice if you have a bad one because you might hear a hissing sound, or the brakes might feel spongy, or the air compressor will run more often trying to maintain pressure. They’re a small part, but a really important one for safety. You can find a good selection of these over at Fixparts Online, just make sure you get the right size and thread type for your application.

Warranty Information

Wabco Hose Barb (MPN 8931294022) comes with a 1-year warranty.