A novel maize variety designated PH48YD and seed, plants and plant partsthereof are provided. Methods for producing a maize plant comprise crossingmaize variety PH48YD with another maize plant are provided. Methods forproducing a maize plant containing in its genetic material one or more traitsintrogressed into PH48YD through backcross conversion and/or transformation,and to the maize seed, plant and plant part produced thereby are provided.Hybrid maize seed, plants or plant parts are produced by crossing the varietyPH48YD or a locus conversion of PH48YD with another maize variety.
