The Standard Ignition V392 PCV Valve is a high-quality component designed to regulate the flow of gases in the engine's crankcase ventilation system. This valve ensures optimal engine performance by maintaining the correct air-fuel mixture and reducing harmful emissions. Constructed from durable gray plastic, it features a screw-in attachment method for secure installation. The inlet diameter measures 0.54 inches (13.716 mm), while the outlet diameter is 0.47 inches (11.938 mm). This PCV valve is compatible with various vehicle models, including the 1998 Nissan Pathfinder. By replacing a faulty PCV valve with the Standard Ignition V392, fleet operators can enhance engine efficiency, reduce maintenance costs, and extend the lifespan of their vehicles.