Where can I get the heating cord (not the whole element) for my Whirlpool dryer in Forth Worth, Texas? Model #LE5720xsno

If you are talking about the power supply cord, Lowe's and HD carry a variety of them, 3 and 4 blade. Make sure to get the proper one based on what is required for your model. You may have to change the outlet or do some rewiring if it is a 4 blade plug as most older homes have a 3 blade outlet.