NEMA 14-30P four pin Dryer Cord Plug (YP-73L) – SIGNAL+POWER
3-Prong vs. 4-Prong Dryer Plugs and Outlets: What's the Difference?
Old Style Dryer 10-30P 3-Pin Male 220/250V Plug To New Style Dryer 14-30R 220/250V 4-Prong Female Receptacle Socket Outlet Adapter, Electrical Power Connector Cord Convert NEMA UL-FX1107-D - Amazon.com
Utilitech Appliance Cord 6-ft 3-Prong Gray Dryer Appliance Power Cord in the Appliance Power Cords department at Lowes.com
4 to 3 Prong Dryer Adapter Cord Plug Connects New Dryers to Older 3 Pin Outlets | eBay
Dryer Adapter Cord 4 Prong to 3 Prong with Safety Ground Wire 1.5FT Black/Orange | eBay