Wabco 4491731500 Supply Cable

Description

The Wabco 4491731500 Supply Cable is a critical component within air brake systems, specifically designed for EBS (Electronic Braking System) applications. This cable is used to connect semi-trailers adhering to the ISO 7638 standard. One end of the cable features a 7-pin socket, while the other terminates in an 8-pin Code A connector. Measuring 104 x 370 x 368 mm, this OE-specification cable ensures reliable communication between the tractor and trailer. The robust design and precise engineering of this supply cable contribute to enhanced braking performance and overall system reliability.

Key Features & Benefits

This cable basically delivers the electrical signal and sometimes a compressed air signal to activate the spring brakes – those emergency brakes that kick in if you lose air pressure. It's how the system 'talks' to the brake chambers, telling them to apply the brakes when needed. It handles power and data, similar to a computer cable, but for braking. Think of it as a vital link in your safety system. It connects the Electronic Control Unit – the brain of your air brakes – to the individual brake modulators at each wheel. Without a functioning supply cable, that communication breaks down, and your automatic safety features can't do their job. It’s part of the EBS – Electronic Braking System – and handles signals that control things like ABS and traction control as well, if equipped.

Symptoms, Risks & Replacements

It’s hugely important because it's a direct line to your emergency brakes. If this cable fails, you might lose that automatic application of the spring brakes when you need them most – like if you have a major air leak. You’ll notice if this goes bad because you might get a warning light on your dash, or the brakes just won't respond as they should during a test. You can find a replacement pretty easily – places like Fixparts Online carry them – and it's something you really don’t want to put off fixing. It's like a shield for your safety, so keeping it in good shape is critical.

Warranty Information

Wabco Supply Cable (MPN 4491731500) comes with a 1-year warranty.