GT245 only showed me one transaxle. The filter (item 18) is an M808763 retailing for $51.00. It is located in the center section of the transaxle. I would recommend having this done by some one familiar with hydrostatics. Those tiny hydro units are VERY particular. The smallest scratch on the surfaces of your rotating group can cause pressure/performance issues. I am assuming that you are using hygard low viscosity oil.

