Crankcase Ventilation

Your crankcase ventilation system allows crankcase gases to vent from the engine while the breather element keeps most of the oil from escaping. Crankcase gases building up can pressure which can damage gaskets and other parts of your engine. Oil leaks, high idle, and decreased engine performance are all signs that your crankcase breather filter might need replacing. Without a properly working crankcase ventilation system, the internal pressure of your engine can build to harmful levels and damage your engine. O'Reilly Auto Parts stocks a replacement crankcase filter for select applications. We also stock universal style crankcase breather filters to fit most vehicles. Take a look at our options to find the right part for your vehicle.