Power wise I think you will be fine. It is pretty common to see the 1890 pulled with a larger front wheel assist in the States. I pull an 1895 with a 9400 Deere and 1910 that I converted to hyd drive. When raising and lowering the fan rpm drops alot. So when coming back in I need to be patient because the low fan speed causes a delay in seed getting to the openers. If the 1910 is mechanical drive that should help. Looks like a 9400 has a little higher flow than your 9370 but not much.