Wabco 8938200120 Straight Coupling

Description

The Wabco 8938200120 Straight Coupling is a critical component within air brake systems, designed to connect tubing and maintain air pressure for effective braking performance. This coupling is commonly used in commercial vehicles and trailers. It features 6mm tube connections and wrench sizes of 14mm and 17mm, ensuring a secure and reliable connection. The coupling's OE specification guarantees compatibility and performance, contributing to a safer and more efficient braking system. It measures 17 x 17 x 46 mm.

Key Features & Benefits

This little piece basically joins sections of your air brake line together. Think of it like a connector, making sure the air pressure can flow smoothly from the compressor, through the system, and to the brakes. It's designed to be a tight, secure connection – it doesn’t really do anything beyond that, it just allows everything else to do its job. They come in different sizes, obviously, to match the tubing you're using. It’s part of the air brake system, which, as you probably know, stops big vehicles. Specifically, the coupling is just one point in that entire air line. Air pressure builds up, and when you hit the brake pedal, it releases that pressure to the brake chambers, which activate the brakes. The coupling simply ensures there aren’t any leaks or interruptions in that air flow between sections of the line. It’s not a glamorous part, but it's critical.

Symptoms, Risks & Replacements

Because if it fails, you’ve got an air leak. Air leaks in a brake system are a big deal. Even a small leak can reduce your braking power and that's obviously dangerous. You’ll notice if one develops – you might hear a hissing sound, or your air compressor might run more often trying to maintain pressure. It acts like a shield against air escaping. These aren’t typically something you’d replace unless you’re already working on the air lines, or if you identify a leak specifically at the coupling itself. You can find a good selection of these, and pretty much any air brake part you might need, over at Fixparts Online. Just make sure you get the right size for your lines.

Warranty Information

Wabco Straight Coupling (MPN 8938200120) comes with a 1-year warranty.