Subaru OEM Head Gasket - Left Subaru Crosstrek 2018-2025 / Impreza 2017-2026 | 10944AA160

Overview

The Genuine Subaru OEM Head Gasket (Left Hand) — part number 10944AA160 — is the factory-original cylinder head gasket designed for the left-side bank of compatible Subaru FB-series horizontally-opposed engines. Built to OEM specifications, this gasket ensures a perfect, leak-free seal between the cylinder head and engine block, maintaining proper compression and coolant integrity. It is the ideal replacement for 2018-2025 Subaru Crosstrek and 2017-2026 Subaru Impreza owners seeking an exact-fit, factory-quality repair.

Key Features & Benefits

• Genuine Subaru OEM Part — Manufactured to the same exacting tolerances as the original factory component, ensuring a perfect fit and reliable long-term performance.
• Exact-Fit Left-Hand Gasket — Engineered specifically for the left cylinder head (driver's side on Subaru's boxer engine layout), eliminating any guesswork during installation.
• Superior Sealing Performance — Maintains proper combustion chamber pressure, prevents coolant and oil intrusion, and preserves engine efficiency.
• Factory Warranty Coverage — As a genuine Subaru part, it is covered under Subaru's OEM parts warranty for added peace of mind.
• Direct OEM Replacement — Matches Subaru part number 10944AA160 exactly; no modifications or adaptations are required for installation.
• Compatible with FB-Series Boxer Engines — Designed for the naturally aspirated FB20 boxer engine found in the Crosstrek and Impreza.

What's Included

• 1x Genuine Subaru Left-Hand Head Gasket (Part No. 10944AA160)

Specifications

Fitment & Compatibility

This genuine Subaru left-hand head gasket is compatible with the following vehicles:

• 2018-2025 Subaru Crosstrek
• 2017-2026 Subaru Impreza

Always verify your vehicle's VIN and engine code before ordering to confirm fitment. This is the left-hand gasket only; if replacing both sides, order the corresponding right-hand gasket separately.

Installation

Head gasket replacement is a major engine repair requiring significant disassembly of the top end of the engine. It should only be performed by a qualified technician using the proper tools and the Subaru factory service manual. Ensure the cylinder head and engine block mating surfaces are clean, flat, and free of debris before installing this gasket, and follow all torque specifications and tightening sequences for the head bolts exactly.