Standard Ignition V549 PCV Valve

PCV Valve for Subaru Legacy and Outback

Standard Ignition V549 is a replacement PCV valve for select Subaru crankcase ventilation applications. It is built with a plastic body, straight nipple orientation, and push-on attachment for direct service on the listed vehicles.

• Part number V549 for easy catalog matching
• Fits 2011-2012 Subaru Legacy
• Fits 2010-2012 Subaru Outback
• Plastic construction with black and red finish
• One hose connector with 3/4 in. (22 mm) hose size
• Straight nipple orientation and no connector gender
• Inlet diameter: 0.18 in. (4.572 mm)
• Outlet diameter: 0.22 in. (5.588 mm)

Detailed Product Overview

The Standard Ignition V549 PCV valve is specified for Subaru Legacy and Subaru Outback models in the listed years. As part of the crankcase ventilation system, it routes vapors through the engine’s ventilation path using a push-on connection and a single hose port. The V549 part number is also referenced for catalog lookup and interchange matching, including Beck/Arnley 045-0474 for the same application.

Common Issues This Part Can Address

• Crankcase pressure buildup from a restricted PCV valve
• Rough idle caused by ventilation flow problems
• Oil vapor accumulation in the crankcase ventilation system
• Vacuum irregularities related to a worn PCV valve
• Service replacement for a cracked or aged plastic valve body

Installation Notes and Tips

Verify hose size, inlet and outlet dimensions, and the push-on attachment style before installation. Inspect the connected hose for hardening, splits, or looseness, and replace damaged hose components as needed to maintain a secure seal. Confirm the vehicle application by year and model before ordering.

Quality Assurance

Standard Ignition supplies replacement emission control components for service applications, and V549 is listed with defined dimensions and fitment for the specified Subaru models. Confirm the part number V549 against the vehicle application to ensure correct selection.