1.Upgraded Oil Filter?This is a specially customized oil filter with a nut by the factory. The additional nut does not cause oil leakage; instead, it makes the installation and disassembly process much easier 2.Fitment:UTV ATV Hisun Axis Massimo Coleman 3.Compatible with Hisun UTV ATV 250 400 450 500 550 700 750;Axis 500 700;Massimo MSU500 MSU700;Compatible with Colmean UT400 UT500 UT700 4.Not Fits Axis x550 xs750 5.Packege includes?2 x Oil Filter