<b>TU-32-20 Diesel Fuel System Pressure Test Gauge - Compucheck</b><br>For use on Compuchek test ports on the fuel system of Cummins diesel engines, as well as other diesel engines that have been outfitted with the Compuchek test ports.<br>Contains a hose assembly with a female Compuchek fitting on one end and a 3-1/2", 300 PSI gauge on the other.