Cometic Gasket MLX Head Gasket

2015–2019 Dodge Charger & Challenger 6.2L Hellcat

Part #: C15292-054

Overview

The Cometic MLX Head Gasket is a precision-engineered sealing solution designed specifically for the 2015 to 2019 Dodge Charger and Challenger equipped with the 6.2L Hellcat HEMI engine. Featuring a 4.15" bore and .054" thickness, this head gasket is built to meet the rigorous demands of high-performance and forced induction applications. Whether you are maintaining a factory-level build or pushing the limits with high-boost or racing setups, the MLX gasket ensures a reliable, durable seal that preserves engine integrity under extreme conditions.

Engineered for enthusiasts and professional builders alike, this gasket delivers consistent performance and longevity by utilizing advanced sealing technology tailored to the open deck architecture of the Hellcat engine. It is an essential upgrade for anyone looking to maximize power output while preventing common sealing failures.

Key Features

Cometic’s MLX Head Gasket incorporates cutting-edge design elements to provide superior sealing strength and durability for high-stress engine environments. Key features include:

• HP shim technology that increases clampload for enhanced sealing capability
• Optimized for the open deck block design of the 6.2L Hellcat HEMI engine
• Precision 4.15" bore size to match factory and performance specifications
• .054" thickness balancing durability with compression ratio maintenance
• Multi-layer steel (MLS) construction for exceptional strength and heat resistance
• Designed to withstand high cylinder pressures common in forced induction and high-compression engines
• Compatible with OEM head bolts and torque specifications for straightforward installation
• Manufactured by Cometic Gasket, a trusted leader in high-performance sealing solutions

Construction & Design

The Cometic MLX Head Gasket features a premium multi-layer steel (MLS) construction, combining multiple layers of high-grade steel with elastomer coatings to create a robust, leak-proof seal between the cylinder head and engine block. This design provides excellent resistance to heat, pressure, and chemical exposure common in high-performance engines.

Incorporating HP shim technology, the gasket increases the clampload applied to the open deck block, which is critical for maintaining a tight seal under extreme combustion pressures. Each gasket is precision-machined to the exact bore and deck specifications of the 6.2L Hellcat engine, ensuring a perfect fit and optimal sealing performance. This robust construction helps prevent head gasket failure, coolant leaks, and combustion gas blow-by, even in demanding racing or boosted applications.

Installation & Fitment

This head gasket is a direct-fit replacement for 2015 through 2019 Dodge Charger and Challenger models equipped with the 6.2L Hellcat HEMI engine. No modifications to the engine block or cylinder heads are required. Installation should be performed by a qualified technician following OEM torque specifications and procedures to ensure proper sealing and gasket longevity.

For best results, it is recommended to inspect and resurface the cylinder head and block deck surfaces prior to installation. This ensures a perfectly flat mating surface, maximizing the gasket’s sealing effectiveness and durability.

What's Included

• One Cometic MLX Head Gasket, 4.15" bore, .054" thickness

Ideal For

This head gasket is ideal for performance enthusiasts, professional engine builders, and racers who demand reliable sealing under high-stress conditions. It is perfectly suited for naturally aspirated, supercharged, or turbocharged 6.2L Hellcat engines used in street, strip, or track applications. Whether upgrading an existing engine or assembling a new high-performance powerplant, the Cometic MLX Head Gasket delivers the durability and sealing performance required for serious builds.

Cometic Gasket supplies high-performance sealing solutions for motorsports and high-stress engine builds, with a strong focus on modern gasket materials like multi-layer steel (MLS) head gaskets. Their catalog spans head gaskets and complete gasket sets across a wide range of applications, helping builders maintain reliable combustion and fluid sealing under extreme pressure and heat.