There is a fairly standard taper used on a lot of generator setups, If Yours uses this taper You might be able to find another brand of engine that fits. I have a Northern Hydraulics generator with a bad generator. Motor is a 13 HP Honda, it is an older model, How many HP is Yours?
Good afternoon, Probably a 96 or 90. Miller serial numbers will have six numbers after the two letters. Your machine is a 1997. I think we may have a machine with a bad generator. If you still need it we will check tomorrow. Thanks, weldersales