Subaru OEM Pipe PCV Valve Subaru STI 2017-2021 | 11849AA210

Restore Proper Crankcase Ventilation and Engine Performance

Maintain the reliability and efficiency of your Subaru's crankcase ventilation system with the Subaru OEM PCV Valve Pipe Assembly. Designed as a direct factory replacement, this genuine Subaru component ensures proper routing of crankcase vapors while supporting consistent engine performance and emissions system operation.

Over time, PCV hoses and pipes can become brittle, contaminated, or damaged from heat cycles, oil exposure, and engine vibration. Replacing worn PCV components helps restore proper crankcase pressure regulation, reduce oil vapor leaks, and maintain the performance your turbocharged EJ engine was designed to deliver.

Genuine Subaru OEM Quality

Unlike aftermarket alternatives, the Subaru OEM PCV Valve Pipe Assembly is engineered specifically for your vehicle's factory PCV system. Manufactured to Subaru's strict standards, this pipe provides the correct fitment, routing, and durability required for long-term reliability.

Whether you're performing routine maintenance, replacing a damaged PCV line, or refreshing components during an engine rebuild, genuine Subaru parts deliver the fit and performance you can trust.

Important for Engine Health

The Positive Crankcase Ventilation (PCV) system plays a critical role in controlling crankcase pressure and recirculating harmful vapors back into the intake system. A damaged or restricted PCV pipe can contribute to oil leaks, rough idle conditions, increased crankcase pressure, and reduced engine efficiency.

Replacing aging PCV components is a simple preventative maintenance step that can help protect your engine and maintain proper operation.

Features

• Genuine Subaru OEM component
• Direct replacement PCV Valve Pipe Assembly
• Factory-correct fit and routing
• Durable OEM construction
• Designed for turbocharged EJ applications
• Maintains proper crankcase ventilation
• Supports OEM emissions system operation
• Subaru engineered and tested

Benefits

• Restores proper PCV system function
• Helps regulate crankcase pressure
• Supports smooth engine operation
• Reduces risk of vacuum or vapor leaks
• Ideal for maintenance and engine refresh projects
• Direct-fit installation

Package Includes

• (1) Subaru OEM PCV Valve Pipe Assembly
• Subaru Part Number: 11849AA210

Keep your Subaru's crankcase ventilation system operating as intended with the genuine Subaru OEM PCV Valve Pipe Assembly. Designed for factory fitment and long-term reliability, it's the ideal replacement for worn or damaged PCV plumbing on your WRX STI.