Starter motor used on Ford Truck 6.6L, 7.8L Diesel 1.Declo#:1990347 2.WAI#:50-193-1 3.Lester#: ... Starter motor used on Ford Truck 6.6L, 7.8L Diesel Starter motor cross reference:Cummins#: 3604673RX,Delco#: 1990347, 1993767, 1993854 ... starter motor used on:Ford Truck 6.6L, 7.8L Diesel OEM quality and service, high reliability and efficiency.