This filter set includes the engine oil filter and an in-line fuel filter for the host vehicle. The oil filter cleans the lubricating oil circulating through the engine, while the fuel filter removes contaminants from the fuel supply before it reaches the injection system. A restricted fuel filter can cause power loss and hard starting; a clogged oil filter reduces lubrication flow, accelerating engine wear. The set is supplied as original equipment to match the sealing interfaces and flow ratings of the assemblies it replaces.