3400Heat3 15KW This kit contains three 7/16" 5KW coils with bolt ends and three 3400-3151 limit switches and bolt to male spade connectors. Heating element restring kit for 14.4 - 17.6KW Coleman electric furnaces. Since heating elements are no longer available for the Coleman 3400 & 3400A series electric furnaces, our repair kits will put your element back in working order. Use this kit on the following heating elements: 3400-335 & 3400-3351 found on the 3400-715 and 3400-815 furnace. 3400-336 & 3400-3361 found on the 3400-718 and 3400-818 furnace. 3300-416, 3300-4161 & 3300A4161 found on the 3400A816 furnace. 3300-418, 3300-4181 & 3300A4181 found on the 3400A818 furnace.