I've lost one set of my keys to the MH. Along with other keys, it has the two keys to the door and an ignition key. I'm not out of business since I have another full set. But, I've got to have a backu...
I went to Walmart and has an extra set of keys made for mine. Engine compartment, bay doors, dead bolt, door, ignition, tow bar, etc. There's nothing special about M/H keys.