Yes, mines bolted to the floor too with what loks like a purpose built mount. Thats handy to know that the oil cooler isnt on all of them. Mine has it on the back end of the box, it's like a sandwhich plate with the piping coming out. I have mine using a single plate ap plate, which hangs on well.

Sorry to go slightly OT, but if North york rss (paul)? needs any 7" twin plates for his getrag, I have two as new in boxes.