Wabco 8939977904 Adapter

Description

This adapter is a critical component within air brake systems, facilitating secure connections between air lines and components. It's used in heavy-duty vehicles and trailers to ensure reliable brake function. This Wabco adapter, with MPN 8939977904, is manufactured to OE specification and comes in dimensions of 18 x 20 x 50 mm. Its robust construction and precise design contribute to a leak-free and durable connection, maximizing braking performance and system longevity. This adapter is available in version R and S.

Key Features & Benefits

This adapter, basically, connects different sized air lines or fittings together. Air brake systems sometimes use various diameters of tubing and different types of connections – maybe something needs to go from a larger diameter steel line to a smaller rubber hose. This little piece lets you do that, making sure everything seals up tight and the air pressure doesn’t leak out. It's a simple part, really – it's just about matching things up that weren't originally designed to connect directly. Think of it as a bridge. Your air brake system relies on pressurized air to activate the brakes, and that air has to get to the brake chambers. The adapter sits somewhere within that air line, often where different sections join. It’s not something you directly see working – it’s hidden within the system – but it’s essential for maintaining that continuous air flow. It’s part of what allows the whole system to function as one.

Symptoms, Risks & Replacements

Well, without it, you'd have air leaks. Even a small leak in an air brake system is a big deal. It reduces braking efficiency, and that’s dangerous. This adapter acts like a shield, preventing those leaks at connection points. You’ll notice if one fails— you might hear an air hiss, or even more seriously, experience reduced braking power. They’re surprisingly robust usually, but corrosion or damage can happen, so it’s good to replace them when you’re doing other brake work. We’ve got a good selection of these at Fixparts Online if you're looking, with different sizes and thread types available. It’s a small part, but a really critical one for safety.

Warranty Information

Wabco Adapter (MPN 8939977904) comes with a 1-year warranty.