AFAIK and I could be totally wrong the USA models are prefabbed in China then assembled in the USA at the old Exmark factory
The ones we get here are fully made in the PRC.
World Lawn is a subsiduary of World Products Engineering in the PCR and Worldlawn Power Equipment in the USA is another totally seperate entity ( some sort of tax or import duty lurk no doubt )
WorldLawn USA is basically a stack of the old Exmark executives and the Cobra & Raptor & Viper are made to their designs by World in PRC.
It looks like the executives were all from the marketing & accounting divisions and those who know more that I tell me the main difference between the Exmark range and the World lawn range are metric fasteners & bearings.
If they were made from good quality steel, properly welded together then they would probably be a reasonably good domestic level mower, thsy certainly have put all the good gear in them, they just cant seem to put them together right.
The spindle housings I have replaced were not machined concentrically so I had to index them around 1 hole at a time so that the blades missed the deck baffels and the other blades.
The caster pivots & axels are thick enough, but again fitted with flimsey bearings and the whole frame is very thick plasticine umm sorry Chineese steel,it is probably only just below the bottom of the specs.
The USA catalogue does not list the Honda knock offs we get down here and the Worldlawn ride ons seem to have a different company listed on every compliance plate I have seen to date.
Several other companies bring them in down here as well.
Rover ( an MTD subsiduary ) sells them paited a different colour and we get them badged as Parklanders a well.
If I am wrong, then I would appreciate being corrected, but that is what it I have dug up when trying to find service details and parts suppliers.
Being told to "bring in the old cable & I will see if we can match it up with something" does not wash well .