Most parts other than general hardware, tires, fluids, and perhaps some filters, are brand specific. Since Branson builds the A-series Cummins, you may be able to source some engine parts from Cummins. Of course bearing and seals and hoses can be spec'd out by size. But generally speaking, you will need to go through Branson for most all parts. There are not enough of them out there to support an aftermarket supplier, like we can do with Ford 8N's and older high volume tractors like that.