I also replace EGR coolers frequently on ISX (cm870 and 871), ISM (cm875 and 876), DT466EGR, VT365, VT275, MAXXFORCE 7, MAXXFORCE DT, MAXXFORCE 9/10, MAXXFORCE 13, MAXXFORCE 15 (0nly 1 so far) not to mention a whole other host of parts. Does that mean these engine are junk as well???? I could go...