I just bought some filters today. I payed a little more from one dealer because they had them all in stock: For my CT230:
KC Bobcat Early Tractor
6696286 Engine Oil Filter $9.63 $8.86
6695913 Hyd. Oil Filter $40.80 $34.27
6695914 Hydrostat Filter $15.64 $13.14
6666333 Outer Air Filter $19.44 $21.38
I think they have pretty decent prices on everything except that Hydraulic Oil Filter. I know it is high because I work in the Hydraulic business, and our equipment uses a 10 micron spin on filter rated for 20 gmp and we retail it for about $16.00. I'm not sure what the micron rating is on the bobcat, and I can't find it on the net either. I know it lists it in the manual, but I don't have it in front of me.