Subaru OEM Bypass Gasket Forester / Forester XT 2006-2008 / WRX 2006-2007 | 21896AA120

Overview

The Genuine Subaru OEM Bypass Gasket (Part #21896AA120) is an exact-fit factory replacement gasket designed specifically for the 2006–2008 Subaru Forester and Forester XT and the 2006–2007 Subaru WRX. As a true OEM component sourced directly from Subaru, this gasket ensures a perfect seal and restores your intercooler bypass system to factory specification — no trimming, no modifications, no guesswork.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to the exact same specifications as the original factory part, ensuring a precise fit and reliable seal every time.
• Exact-Fit Guarantee — Engineered specifically for the Forester, Forester XT and WRX applications listed in the fitment section below, eliminating compatibility concerns common with aftermarket alternatives.
• Factory-Grade Materials — Built from OEM-spec materials that withstand the heat and pressure demands of a turbocharged Subaru engine bay.
• Restores OEM Sealing Performance — Replaces worn, cracked, or compressed gaskets to eliminate bypass valve air leaks and maintain proper system pressure.
• Backed by Subaru — Qualifies for Subaru's standard OEM parts warranty when installed by an authorized technician.

What's Included

• 1x Genuine Subaru Bypass Gasket — Part #21896AA120

Specifications

Fitment & Compatibility

This genuine Subaru OEM bypass gasket is compatible with the following vehicles:

2006-2008 Subaru Forester

2006-2008 Subaru Forester XT

2006-2007 Subaru WRX

Always verify fitment using your vehicle's VIN or consult your Subaru dealer to confirm compatibility before ordering.

Installation

This bypass gasket is a direct OEM replacement requiring no modification. Installation complexity will vary depending on system access — some applications may require partial removal of ancillary components to reach the bypass port. We recommend installation by a qualified Subaru technician or experienced DIY mechanic familiar with EJ-series turbocharged engines. Always use a fresh gasket any time the bypass assembly is disturbed, and torque all fasteners to factory specification.