Ford F7TZ-6A051-AA - HEATER ASY 7.3L Powerstroke Diesel Engine Block Heater Element F-250 F-350 F-450 F-550 Super Duty Excursion E-350 E-450 Econoline E-Series Vans 1997 1998 1999 2000 2001 2002 2003 F7TZ*6A051*AA FORD F7TZ-6A051-AA