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Air brakes unloader valve.
Haldex product unloader valve 312013014.
Air suspension additional air accessories use of an undersized compressor frequent stops.
With that said there are other ways to determine which valve you need.
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Why does my air brake compressor cycle constantly.
You can have a rest and please slide to verify.
Air valve part number references.
The site may feel slow and unresponsive at times.
Unloader valve air brake we are doing scheduled site maintenance.
Air compressors are designed to build air run loaded up to 25 of the time.
When the compressor tank pressure reaches the point where the electrically powered compressor would have the motor power cut off by the pressure switch what happens on the fuel driven compressor is the motor is revved down to an idle when the tank is full.
Remove the air governor sensing line at the governor and use regulated shop air to cycle the compressor.
Factors that add to the duty cycle are.
This problem usually points back to the air dryer air governor sensing line or the air compressor unloader.
The only people who can tell you what valve the vehicle manufacturer used based on a vin are the vehicle dealers.
Here are some easy ways to troubleshoot.