There is also a screen in the hydraulic line to filter debris upfront on the right (as you are sitting on the tractor) near the radiator, it looks like a long canister. The screen comes out and can be cleaned. There is also a spin on type of filter under the seat. I used to have a hard time finding the spin on filter, however since I got one I have seen about 6 on ebay. And as much as I use this machine, the spin on I wont need to change for sometime. I think in four years I only did 30 hours since I mainly use it to pull logs and plow snow.