This kit contains three 7/16" 5KW coils with bolt ends and three 3400-3151 limit switches. 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. Note - IMPORTANT: Before ordering, double-check the ends of the coils on your heating element. If your ends are bolt, this kit is perfect. If your ends are male spade terminals, then we need to substitute coils with spade ends. Please note that on your order or call us. Click here for installation instructions.