Amazon.com: Facon 5'' x 4'' Automotive Engine Block Heater Pad with 3M Self Adhesive and Thermostatically controlled, 50W Engine Oil Pan Heater Pad with 2-Prong Plug, Silicone Sealer Included : Automotive
KATS HEATERS HANDI HEAT MAGNUM 1160 MAGNETIC ENGINE BLOCK HEATER 12O VOLT MA84 | eBay
Magnetic Block Heater for Allis Chalmers, Case/IH, Ford, John Deere Tractor Models and More