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, especially designed fit for Chevrolet Trailblazer 2012-2014. 6It has no metal structure, is environmentally friendly and can be reused.1 x Oil Filter1 x O-RingCondition: 100% New_x000D_Item Type: Oil Filter_x000D_Material: Curing Paper_x000D_Color: Yellow_x000D_OEM: 12636838_x000D_Fitment:_x000D_Fit for Chevrolet Trailblazer 2012-2014 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, especially designed fit for Chevrolet Trailblazer 2012-2014. 6It has no metal structure, is environmentally friendly and can be reused.1 x Oil Filter1 x O-Ring