Cometic C15731-063 DST Head Gasket LH for 15-19 Dodge 6.2L Hellcat

Vehicle Fitment

• 2015-2019 Dodge Challenger (SRT Hellcat, 6.2L Supercharged V8, RWD)
• 2018 Dodge Challenger (SRT Demon, 6.2L Supercharged V8, RWD)
• 2019 Dodge Challenger (SRT Hellcat Redeye, 6.2L Supercharged V8, RWD)
• 2018-2019 Dodge Challenger (SRT Hellcat Widebody, 6.2L Supercharged V8, RWD)
• 2019 Dodge Challenger (SRT Hellcat Redeye Widebody, 6.2L Supercharged V8, RWD)
• 2015-2019 Dodge Charger (SRT Hellcat, 6.2L Supercharged V8, RWD)

Fitment Notes

• Fits 6.2L Supercharged Hellcat (Gen 3 HEMI) engines only
• Left-hand (driver side) cylinder head gasket
• Does not fit 6.4L 392 HEMI or 5.7L HEMI engines
• Not compatible with 6.2L Demon/Redeye variants requiring revised OEM-specific gaskets unless confirmed
• Designed for high-boost and extreme performance applications

Features

• DST (Dual Stopper Technology) for enhanced combustion sealing
• 7-layer multi-layer steel construction for extreme durability
• 0.063" compressed thickness for compression ratio tuning
• 4.150" bore size optimized for Hellcat engine architecture
• Integrated stopper layers concentrate clamp load around cylinders
• Viton-coated outer layers for superior heat and fluid resistance
• Designed for forced induction and high cylinder pressure environments
• Direct bolt-on design - no machining or O-ringing required

Specifications

• Material: Multi-Layer Steel (DST 7-layer design)
• Compressed Thickness: 0.063 inch
• Bore Size: 4.150 inch
• Layer Count: 7 layers
• Orientation: Left-hand (LH / driver side)
• Engine Compatibility: 6.2L Supercharged Hellcat Gen 3 HEMI V8
• Position: Cylinder Head Gasket

Included Components

• 1x Left-Side DST Cylinder Head Gasket

Product Description

The Cometic C15731-063 DST Head Gasket is purpose-built for high-performance Dodge Hellcat engines, featuring advanced Dual Stopper Technology (DST) to deliver superior combustion sealing under extreme boost and cylinder pressures. Its 7-layer multi-layer steel construction provides unmatched durability and reliability, making it ideal for supercharged applications and high-horsepower builds. 

With a 0.063-inch compressed thickness and 4.150-inch bore, this gasket allows precise tuning of compression ratio while maintaining optimal sealing integrity. The integrated stopper layers concentrate clamping force around each cylinder, significantly improving resistance to combustion leakage compared to traditional MLS designs.

Designed as a direct bolt-on solution, the gasket eliminates the need for additional machining or O-ring modifications, simplifying installation while maintaining race-level sealing performance. It is best suited for properly machined engine surfaces and is ideal for enthusiasts building or upgrading high-output Hellcat-powered vehicles.