For DRZ400E S SM Quadsport 2000-2019 fits DR-Z400 DRZ400 400E 400S 400SM LT-Z400 LTZ400 Quadsport LT-R450 LTR450 models from 2000 to 2019 with identical mounting specs for quick direct swap; easy screw on installation no extra adapter or needed; multi layer dense filter media traps particles carbon sludge engine to internal moving parts; thick reinforced housing deformation under oil pressure during offroad RPM operation; built in leakproof rubber gasket prevents oil seepage stable lubrication circulation for dirt bike ATV heavy load riding