Subaru OEM Header Gasket - 44022AA030 (98-15 Impreza) | 44011AC030

Overview

The Genuine Subaru OEM Header Gasket (Part #44011AC030) is a factory-original exhaust manifold gasket designed for a precise, leak-free seal between the exhaust header and the engine block. Engineered to Subaru's exact specifications, this OEM replacement gasket is the ideal solution for restoring factory performance on 1998–2015 Subaru Impreza models. Choosing a genuine OEM part ensures proper fitment, material quality, and longevity that aftermarket alternatives simply cannot guarantee.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to factory specifications for a perfect fit and reliable seal, eliminating exhaust leaks at the header-to-engine junction.
• Exact-Fit Design – Engineered specifically for compatible Subaru Impreza applications, ensuring no modification or trimming is required during installation.
• High-Temperature Materials – Constructed to withstand the extreme heat cycles generated by Subaru's horizontally opposed (boxer) engines, providing lasting durability.
• Prevents Exhaust Leaks – Restores proper exhaust sealing to eliminate power loss, ticking noises, and harmful exhaust gases entering the engine bay.
• Factory Warranty Coverage – As a genuine Subaru OEM part, it is backed by Subaru's standard OEM parts warranty for peace of mind.
• Cross-Reference Part Numbers – Replaces or is referenced alongside Subaru part number 44022AA030; verify fitment using both numbers for your specific application.

What's Included

• 1 × Genuine Subaru OEM Header Gasket (Part #44011AC030)

Specifications

Fitment & Compatibility

This Genuine Subaru OEM Header Gasket is compatible with the following vehicles. Always verify your specific year, model, and trim level before ordering.

Note: If your vehicle is near the boundary of the listed year range or if you have a performance trim (WRX, STI), please confirm fitment using both part numbers 44011AC030 and 44022AA030, or consult your Subaru dealer.

Installation

This header gasket is a direct OEM replacement designed for a bolt-on installation. Basic mechanical experience and the correct torque specifications (refer to the Subaru service manual for your model year) are recommended. The exhaust system must be fully cooled before beginning work. Professional installation by a certified Subaru technician is recommended if you are unfamiliar with exhaust system service. Always replace the header gasket any time the exhaust manifold is removed to ensure a proper seal.