This invention is in the field of corn breeding, specifically relating to a dent corn inbred designated as KWU7104. Inbred KWU7104 is a Lancaster-Mo17 family based inbred that is specifically bred by means of a pedigree selection method for the north central United States. As one of the parents, Inbred KWU7104 contributes superior test weight to the F1 hybrid. The specific density of the grain is referred to as test weight and is an important agronomic trait in the corn industry.