2014 KENWORTH T680 Fuelpropulsion System Problems

APPARENTLY THERE IS A FAILURE OF THE FUEL PUMP IN MOST MODELS OF THIS CUMMINS ISX15 MOTOR, THA WHEN IT DOES FAIL, SHUTS THE TRUCK DOWN ON HIGHWAY, OR WORSE, LIK EIT DID TO ME....SEND METAL SHAVINGS INTO THE REST OF THE MOTOR DESTROYING THE MOTOR. THERE HAVE BEEN RECALLS FOR CERAMIC PLUNGERS, WHICH I DON'T HAVE...AND RECALLS ON MANY YEARS THIS MODEL WAS MANUFACTURED. I HAVE AN EXTENDED MAJOR COMPONENT WARRANTY THAT CUMMINS WILL NOT HONOR SINCE THE FUEL PUMP FAILURE IS NOT COVERED.....DEALER HAS WITNESSED MANY FAILURES OF THE FUEL PUMPS AND NOT ALWAYS COVERED...EVEN THOUGH REPAIR OR REPLACEMENT OF ENGINE IS IN EXCESS OF $20000 TO $35000 FOR A NEW REPLACEMENT. THIS NEEDS TO BE ADDRESSED WITH CUMMINS !!