The Sleeve Insert 6X1 is a critical component used within the air brake systems of heavy-duty vehicles. Specifically, it functions as a fitting, ensuring secure connections within the air lines. This Wabco part, with MPN 8930402104, is designed to meet OE specifications, guaranteeing a precise fit and reliable performance. Measuring 5 x 5 x 10 mm, this sleeve insert enhances the overall durability and efficiency of the air brake system by providing a robust and leak-proof connection. These little guys are basically connectors. They slide inside air brake fittings – things like where your air lines connect to the air dryer, or the brake chambers. They create a tight, leak – proof seal between the airline and the fitting itself. They handle the pressurized air, so they need to be solid. Think of your air brake system like your circulatory system – everything needs to be sealed and working right for it to function. These inserts are a critical part of those connections. They ensure the air pressure goes where it needs to go – to your brakes – and doesn't escape. They fit inside the fitting to grab onto the air line and create that seal. Without them, you’ll get leaks, and that’s a big problem. Air brakes rely on consistent pressure. A leak, even a small one, can significantly reduce braking power and that’s obviously dangerous. These sleeve inserts act like a shield against those leaks. You’ll notice if one fails, usually as a slow or fast leak when applying the brakes, or a hissing sound. It's a cheap part to replace compared to the cost of fixing a brake failure. You can find them pretty easily—we stock a lot of them at Fixparts Online, and other auto parts places should too. Best to replace them any time you’re working with the air lines, just as a preventative measure. Next-gen performance: Sleeve Insert (MPN 8930402104) is backed by 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 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. Drive with confidence – choose Wabco parts at FixParts Online.