Subaru OEM Hose PCV 2017-2021 STI | Genuine Replacement | Engine Maintenance Hose

Overview

The Subaru OEM Hose PCV for 2017-2021 WRX STI models is a direct replacement part designed to maintain the proper function of your vehicle’s positive crankcase ventilation system. This hose plays a critical role in managing crankcase gases, ensuring they are rerouted back into the intake system for combustion rather than being released into the atmosphere. It is essential for maintaining engine efficiency, reducing emissions, and preventing potential oil leaks or vacuum issues.

Manufactured by Subaru to OEM specifications, this PCV hose is engineered with precise fitment and durability in mind. Using genuine materials and construction methods, it meets the exact standards Subaru requires for reliable long-term performance. This ensures a perfect fit and seamless integration with your WRX STI’s engine components, preserving factory reliability and performance.

For Subaru enthusiasts focused on maintaining their vehicle’s health and reliability, using an OEM PCV hose guarantees compatibility and peace of mind. Proper ventilation of crankcase gases supports consistent engine operation and helps avoid common issues related to worn or cracked hoses. This genuine part is a straightforward maintenance upgrade that keeps your STI running as intended.

Features & Specifications

This Subaru OEM Hose PCV is engineered specifically for 2017-2021 WRX STI models and features genuine Subaru part number 11815AC900. Constructed from durable OEM-grade rubber, it delivers reliable sealing and flexibility for Subaru enthusiasts seeking factory-accurate replacement components.

• Brand: Subaru OEM
• Product: Hose PCV
• Part Number: 11815AC900
• Fitment: 2017-2021 Subaru WRX STI
• Material: OEM-grade rubber
• Finish: Black rubber
• Construction: Molded hose
• Origin: Genuine Subaru part

Key Benefits

• Fitment: Guaranteed OEM fitment ensures easy installation and perfect sealing with factory components.
• Durability: Made from high-quality rubber designed to withstand heat, oil vapors, and engine bay conditions.
• Reliability: Maintains proper crankcase ventilation to prevent vacuum leaks and engine performance issues.
• OEM Quality: Manufactured to Subaru’s exacting standards for consistent, long-lasting performance.
• Maintenance: Ideal for replacing worn or cracked hoses to preserve engine health and emissions compliance.

What's Included

• 1× Subaru OEM Hose PCV 11815AC900

Installation & Compatibility

Installation of the Subaru OEM Hose PCV is straightforward and typically DIY-friendly for enthusiasts with basic mechanical skills. The hose is a direct bolt-on replacement with no modifications required. No special tools are necessary beyond standard hand tools for hose clamp removal and installation. Always inspect surrounding components for wear during replacement. This hose is compatible exclusively with 2017-2021 Subaru WRX STI models; verify your vehicle’s year and trim before purchase.

• Professional Installation: DIY-Friendly
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific 2017-2021 WRX STI model

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