Fan and limit switch assembly most often found on Mac 1145, 1155 and 1165 furnaces. Contains L130F limit switch 6260251 and F110 fan switch 6260380. Replaces 6260230 & 6260231. 

Fan and limit switch assembly most often found on Mac 1145, 1155 and 1165 furnaces. Contains L130F limit switch 6260251 and F110 fan switch 6260380. Replaces 6260230 & 6260231. Its easier to replace the whole box and a few wires
instead of just the sensors
Wiring diagram included

Note; No box cover , use your old one
Note; these boxes come in gray or orange , same thing