That appears to be the breakout box used on IH DT466EGR, VT365, VT275 and other DLC2 systems made from 2002 to 2008. It would also be used on Ford F650/750 with the VT365 (6.0) and LCF VT275 engines from about 2004 to about 2007. That's why it's supplied by Ro... Login to read more.