Wabco 8939200004 Through Coupling

Description

The Wabco 8939200004 Through Coupling is a critical component within air brake systems, designed to connect air lines and facilitate the transfer of pressurized air. It's used in the construction of robust and reliable braking connections for commercial vehicles. This coupling meets OE specifications, ensuring performance and durability. Its dimensions are 20 x 19 x 72 mm, and it features a M16 x 1.5 thread. This through coupling offers a secure and leak-proof connection, contributing to the overall safety and efficiency of the air brake system.

Key Features & Benefits

Basically, a through coupling is a connector. It joins two sections of air brake line together. Think of it like a sleeve that lets the air flow uninterrupted from one piece of tubing to the next. It’s a straight connection, meaning the air travels straight through, not turning a corner. It uses threaded ends so you can tighten it down and make a secure, airtight seal. They come in different sizes depending on the diameter of the air lines in your system. This part lives within your air brake system, specifically connecting sections of the air lines that run throughout the truck or trailer. These lines deliver the compressed air needed to activate the brakes. It’s not something you’d see from the outside, it’s all hidden within the network of lines. You’ll find them in various places—connecting lengths of supply line, or tying into components like the air dryer or leveling valves.

Symptoms, Risks & Replacements

Well, air brakes are obviously critical for safety, so any leak in the system is a big deal. This coupling needs to maintain that airtight seal. If it fails, you’ll start losing air pressure. You’ll notice if it's leaking because your air compressor will be running more often to try and keep the pressure up, and eventually your brakes won't function properly. It acts like a shield, keeping the air where it needs to be to get you stopped. A small leak can become a big problem quickly. If you’re doing any brake work, it’s always best to replace these while you're in there just to be safe. You can find a good selection of these—and pretty much everything else brake – related—over at Fixparts Online. It’s always good to have a spare or two on hand as well.

Warranty Information

Wabco Through Coupling (MPN 8939200004) comes with a 1-year warranty.