Cometic C15731-071 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
• Not compatible with 5.7L or 6.4L HEMI engines
• Demon and Redeye applications should verify OEM gasket requirements for revised sealing designs
• Designed for extreme boost and high cylinder pressure environments

Features

• DST (Dual Stopper Technology) for superior combustion sealing under boost
• 7-layer multi-layer steel construction for extreme durability
• 0.071" compressed thickness for compression ratio adjustment
• 4.150" bore size optimized for 6.2L Hellcat engines
• Integrated dual stopper layers improve clamp load distribution
• Viton-coated outer layers resist heat, oil, and coolant intrusion
• Designed for high-horsepower and forced induction builds
• Direct bolt-on installation with no O-ring machining required

Specifications

• Material: Multi-Layer Steel (DST 7-layer design)
• Compressed Thickness: 0.071 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 C15731-071 DST Head Gasket is engineered for extreme-performance Dodge Hellcat applications, utilizing advanced Dual Stopper Technology (DST) to maintain superior sealing under high boost and cylinder pressure. Its 7-layer multi-layer steel construction provides enhanced durability and consistent clamping force, making it ideal for high-horsepower street and race builds. 

Featuring a 0.071-inch compressed thickness and a precision 4.150-inch bore, this gasket allows builders to fine-tune compression ratio while maintaining optimal combustion sealing. The integrated stopper layers distribute load evenly across the sealing surface, reducing bore distortion and improving long-term reliability under extreme thermal and mechanical stress. 

Designed as a direct bolt-on solution, this gasket eliminates the need for additional machining or O-ring modifications, simplifying installation while delivering race-level sealing performance. It is best suited for properly machined engine surfaces and is a critical upgrade for high-boost Hellcat engine builds.