1It can reduce the frictional resistance between the relatively moving parts in the engine and reduce the wear of the parts. 2It allows the oil to be continuously delivered to the friction surface of each moving part to form a lubricating oil film for lubrication. 3Collect contaminants and moisture in the fuel system to allow cleaning of filtered fuel through the engine. 4Extended life filtration media engineered to deliver extended miles of engine protection. 5Easy to install and reliable performance, replace OE number for reference is 01830. 6It has no metal structure, is environmentally friendly and can be reused.1 x Oil Water Separator AssemblyCondition: 100% New_x000D_Item Type: Oil Water Separator_x000D_Material: ABS + Filter Paper_x000D_Color: As Pictures Shown_x000D_OEM: 01830_x000D_Fitment: Fit for SWK-2000/18 all 1It can reduce the frictional resistance between the relatively moving parts in the engine and reduce the wear of the parts. 2It allows the oil to be continuously delivered to the friction surface of each moving part to form a lubricating oil film for lubrication. 3Collect contaminants and moisture in the fuel system to allow cleaning of filtered fuel through the engine. 4Extended life filtration media engineered to deliver extended miles of engine protection. 5Easy to install and reliable performance, replace OE number for reference is 01830. 6It has no metal structure, is environmentally friendly and can be reused.1 x Oil Water Separator Assembly