644 is 14 hp, 646 is 16 hp, 6018 is 18 hp.Hi All I’m new here from the Midwest Minnesota. I’ve kept my eye on case machines for a while now with the loaders etc just curious what the differences are between a 644/646. I’ve also just found a Ingersoll 6018 with loader/backhoe curious what process and availability are on these machines?
Thanks in advance!
Process? Do you mean price?
Availability - you can find them on craigslist or FB marketplace, usually in the $2,500 to $5,000 depending on condition (without backhoe)