Wabco 4013008 Repair Kit

Description

This Repair Kit by Wabco is designed for use in air brake systems, specifically as a complete unit for relay valve maintenance and repair. It ensures optimal functionality and extends the service life of the air brake system. This kit meets OE specifications, guaranteeing a precise fit and reliable performance, restoring the braking system to factory standards and promoting driver safety.

Key Features & Benefits

This kit essentially rebuilds the relay valve. The valve itself takes a low – pressure signal from your cab – when you push the brake pedal – and boosts it up to a higher pressure to actually apply the brakes on the trailer. The kit includes new seals, diaphragms, maybe some o – rings – anything that tends to wear out inside the valve over time. It doesn’t replace the whole valve housing, just refreshes the working parts. Think of it as a crucial link in your air brake system. You press the pedal, this valve amplifies that signal, and then your trailer brakes get activated. It’s specifically for trailers with air brakes – you won’t find this on a passenger car. It's part of what keeps everything safe and responsive when you need to slow down or stop a loaded trailer.

Symptoms, Risks & Replacements

Well, if this valve starts to leak or doesn’t hold pressure correctly, your trailer brakes will become weak or unresponsive. You’ll notice if your trailer is taking longer to stop, or you might feel a “mushy” brake pedal. A failing relay valve acts like a shield that’s cracked – it still tries to protect you, but it’s not doing the job fully. Replacing the seals and parts in this kit gets everything working correctly again, ensuring you have full braking power when you need it. You can find these kits pretty readily, and Fixparts Online carries a good range of them if you're looking. It’s a relatively straightforward repair, but it's definitely something you want to address promptly for safety’s sake.

Warranty Information

Wabco Repair Kit (MPN 4013008) comes with a 1-year warranty.