If it has been converted to full flow or came from the factory that way, it will have a NAPA 1161/WIX 51161 oil filter. The nut on the top of the oil filter will have a slot in it. The bypass filters that preceded the full flow had a T handle on top of the filter canister. There will be a cartridge filter NAPA 1165 ?? and a brass screen in the housing if it is a bypass type.
Fuel filters are a NAPA 3825/WIX 33825 string wound cartridge filter. They are usually quite expensive at over $20 each and you need 3. Might be cheaper to get them from CAT dealer or here.......
www.usafilterstore.com/mm5/merchant.mvc?Store_Code=U&Screen=PROD&Product_Code=3825
Or here.....
www.amazon.com/Killer-Filter-Replacement-NAPA-3164/dp/B00BAGNCHQ