The function of the engine oil filter is to filter out impurities, gums, and moisture in the engine oil and deliver clean engine oil to various lubricating parts. Product name: Oil Filter Product number: 3313279 / LF670 Application: Cummins Produce size: φ118×286 Thread: Product Specification: 1 1. The top1 direct filter manufacture in China with more than 1000 employees. 2. More than 4500 kinds of oil, fuel and air filters. 3. Direct customers: WEICHAI,Great Wall Motor... 4. Pass the quality system certification IATF 16949 14000 45000.