You obviously dont know, so I'll tell you that R410 is not something you slap into a system like this, you will blow the snot out of your evaporators tubing, ( it's a very high pressure system gas used in place of R22 usually in HVAC Systems) you'd be looking for an R134a compressor, try googling the original compressors model number, it should pop up with some specs as far as its size was.
The number should be stamped into / on the compressors case somewhere. And you could post a picture too.