1994 Cummins 4BT, Engine Assys, (GOOD USED & TEST RUN & INTERNALLY INSPECTED) 1994 Cummins 4BT 3.9L Diesel Engine For Sale, 4B, Natural Aspiration, 76HP @ 2500RPM, CPL# 0591, FULLY MECHANICAL, 4 Cylinders, Engine Serial# 45025760, Stock# 6830