Dorman 47239 PCV Valve

Reliable PCV Valve Replacement for Subaru Vehicles

The Dorman 47239 PCV Valve is designed to maintain proper crankcase ventilation in select Subaru models. This standard replacement valve ensures efficient emission control and helps your engine run smoothly by regulating the flow of gases.

• Compatible with Subaru Baja, Forester, Impreza, Legacy, Outback, and WRX STI
• Straight up nipple direction for precise fitment
• Male connector with 0.35 inch outlet end outside diameter
• Thread diameter of 18 mm for secure installation
• Includes one check valve, no cap or mounting brackets included
• Standard replacement grade for reliable performance

Product Details and Specifications

The Dorman 47239 PCV Valve features a straight up nipple direction, allowing for proper hose alignment in the crankcase ventilation system. Its male connector design with an 18 mm thread diameter ensures a secure and leak-free connection. The outlet end outside diameter measures 0.35 inches, matching OEM specifications for a precise fit. This valve is a standard replacement part, engineered to meet the emission control requirements of Subaru vehicles including the Baja, Forester, Impreza, Legacy, Outback, and WRX STI models.

Purpose and Common Applications

This PCV valve is essential for maintaining the proper ventilation of crankcase gases, which helps reduce harmful emissions and prevents engine oil contamination. It is commonly used to address issues such as:

• Excessive oil consumption or leaks
• Rough engine idle or stalling
• Increased engine emissions or failed emissions tests
• Check engine light related to crankcase ventilation
• Oil sludge buildup in the engine

Installation Notes and Tips

When installing the Dorman 47239 PCV Valve, ensure the nipple is oriented straight up to match the hose routing on your Subaru model. Verify the thread diameter of 18 mm fits securely without cross-threading. Since no mounting brackets or caps are included, reuse existing hardware if applicable. Inspect the surrounding hoses and connectors for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty

Dorman manufactures this PCV valve to meet standard replacement quality, ensuring compatibility and reliable function in Subaru vehicles. The part number 47239 is backed by Dorman's quality control processes. Please refer to Dorman's official warranty policy for coverage details.