HKS Stopper Head Gasket

Part #: 23001-AM004

Overview

The HKS 1.2mm Stopper Head Gasket is a high-performance replacement component designed for Mitsubishi Evo VIII and IX models from 2003 to 2006. Crafted to meet the demands of enthusiasts and tuners, this gasket provides a reliable seal between the cylinder head and engine block, supporting optimal compression and combustion efficiency. Its precise thickness and material composition help maintain engine integrity during high-performance applications, making it an ideal upgrade for those seeking enhanced durability and consistent performance under demanding conditions. This gasket is engineered to withstand elevated temperatures and pressures, ensuring long-lasting reliability in tuned or heavily modified engines. Whether you're building a high-horsepower setup or replacing a worn component, this gasket helps support your vehicle’s performance goals while maintaining the factory-like fit and finish.

Key Features

This stopper head gasket features advanced design and quality materials to ensure a secure seal and durability. Key features include:

• 1.2mm thickness for optimal compression and sealing
• High-quality multi-layer steel construction for strength and heat resistance
• Precisely engineered bore size of 86mm for accurate fitment
• Designed specifically for Mitsubishi Evo VIII and IX engines
• Supports high-performance engine builds and modifications
• Helps prevent head gasket failure under increased boost and power levels
• Manufactured by HKS, a trusted name in performance automotive parts

Construction & Design

This head gasket is constructed from durable multi-layer steel (MLS), which provides excellent heat resistance, strength, and sealing capabilities. The design incorporates a precise bore size and thickness to ensure a perfect fit and reliable performance in high-stress conditions, making it suitable for both stock and modified engines.

Installation & Fitment

Installation requires proper engine disassembly and gasket replacement procedures. It is recommended to verify fitment against your vehicle's specifications and the part number provided to ensure compatibility.

What’s Included

The package includes one HKS 1.2mm Stopper Head Gasket designed specifically for Mitsubishi Evo VIII and IX models, with a bore size of 86mm. Hardware or additional components are not included and should be sourced separately if needed.

Ideal For

This gasket is ideal for enthusiasts and professional tuners performing engine rebuilds, head gasket replacements, or high-performance modifications on Mitsubishi Evo VIII and IX vehicles. It supports sustained engine integrity and performance in demanding driving conditions.