This engine oil filter removes particulate and contaminants from the engine lubrication circuit. It is mounted on the engine block and receives oil from the pump before it is distributed to the bearings, pistons, and valve train. A restricted filter element reduces oil flow, which can lead to elevated oil temperatures and accelerated wear on the crankshaft and connecting rod journals. The filter housing includes an anti-drainback valve that prevents dry starts by holding oil in the filter when the engine is off. On reinstallation, verify the gasket is seated correctly and tighten the housing to the specified torque.