filters Short #2155 & Long #2149 K&P Stainless Steel Reusable Oil Filter. Superiour filtration for your KTM 525 XC 2008-2009. This filter covers all KTM part numbers for these models. Filtration 35 microns absolute, greater surface area & over 7 times the flow rate of paper filters. Will not wear out & guaranteed for life. Easily cleaned & monitor your engine for problems as you do so. Genuine USA Made by K&P Engineering, the Original & The Best.