Purolator PV1019 PCV Valve Positive Crankcase Ventilation Valve

The Purolator PV1019 is a direct-fit Positive Crankcase Ventilation (PCV) valve designed for select Nissan and Subaru applications. As a critical component of the engine's emissions and ventilation system, the PCV valve regulates the flow of crankcase gases back into the intake manifold to be re-burned, helping maintain clean and efficient engine operation.

The PCV valve functions as one half of the complete crankcase ventilation system, working in tandem with the breather filter. Clean air enters the crankcase through the breather side while the PCV valve vents blow-by gases and contaminants out of the crankcase and routes them back through the engine for combustion. A worn or clogged PCV valve can lead to rough engine idle, blown oil seals, a fouled air filter, fuel system contamination, excessive engine wear, and reduced oil life.

Key Features:

• Direct-fit replacement PCV valve for select Nissan and Subaru vehicles
• Helps maintain proper crankcase pressure and engine ventilation
• Prevents rough idle, oil seal failure, and air filter fouling caused by a failed PCV valve
• Supports cleaner emissions by routing crankcase gases back into the combustion cycle
• Manufactured by Purolator, a trusted name in engine filtration and ventilation components
• Recommended replacement interval: every 12 months or 12,000 miles

Regular PCV valve replacement is an often-overlooked but essential part of engine maintenance. Installing a fresh Purolator PV1019 helps protect your engine's longevity and keeps the crankcase ventilation system functioning as intended.