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Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.
Achieve an uncompromising seal with the Cometic MLX (Multi-Layer Exclusive) cylinder head gasket, specifically engineered for the Chrysler 6.4L Apache Gen-3 Hemi engine. This gasket features a 4.150-inch bore and a .054-inch thickness, providing the ideal compression ratio and sealing surface for high-performance and forced-induction applications. Cometic's advanced MLX technology utilizes a stainless steel outer layer with an integrated stopper fold, ensuring maximum clamp load and durability under extreme cylinder pressures.
Designed to withstand the rigors of high-horsepower builds, this gasket prevents combustion gas leakage and coolant migration, common failure points in high-output Hemi engines. The precise engineering ensures a perfect fit for a wide range of vehicles, including the Dodge Challenger, Charger, Jeep Grand Cherokee SRT, and Ram 2500/3500 models. Whether you are building a street-strip monster or a dedicated track vehicle, the Cometic MLX gasket provides the reliability you need to push your engine to the limit. Proper surface preparation and torque sequence are critical for optimal performance. Trust your engine build to the industry-leading sealing technology found at GGCRACING.
| Brand | Cometic Gasket |
|---|---|
| Manufacturer part number | C15172-054 |
| GGC SKU | CGSC15172-054 |
| UPC / GTIN | 191070070816 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 24 × 9.8 × 0.2 in |
|---|---|
| Shipping weight | 0.9 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2012-2014 | Chrysler | 300 | SRT8 |
| 2013 | Chrysler | 300 | SRT8 Core |
| 2011-2014 | Dodge | Challenger | SRT8 |
| 2015 | Dodge | Challenger | Scat Pack |
| 2015-2018 | Dodge | Challenger | SRT 392 |
| 2016 | Dodge | Challenger | 392 Hemi Scat Pack Shaker |
| 2016-2019 | Dodge | Challenger | R/T Scat Pack |
| 2017-2018 | Dodge | Challenger | T/A 392 |
| 2017-2019 | Dodge | Challenger | R/T 392 |
| 2019 | Dodge | Challenger | R/T Scat Pack Widebody |
| 2012-2014 | Dodge | Charger | SRT8 |
| 2015-2018 | Dodge | Charger | R/T Scat Pack, SRT 392 |
| 2017-2018 | Dodge | Charger | Daytona 392, R/T 392 |
| 2019 | Dodge | Charger | Scat Pack |
| 2018-2019 | Dodge | Durango | SRT |
| 2012-2013 | Jeep | Grand Cherokee | SRT8 |
| 2014-2019 | Jeep | Grand Cherokee | SRT |
| 2014-2015 | Ram | 2500 | Laramie Limited, Lone Star |
| 2014-2016 | Ram | 2500 | Outdoorsman |
| 2014-2018 | Ram | 2500 | SLT |
| 2014-2019 | Ram | 2500 | Laramie Longhorn, Power Wagon, Tradesman, Big Horn, Laramie |
| 2016-2019 | Ram | 2500 | Limited |
| 2019 | Ram | 2500 | Lone Star |
| 2014-2015 | Ram | 3500 | Lone Star |
| 2014-2019 | Ram | 3500 | Big Horn, Laramie, Laramie Longhorn, SLT, Tradesman |
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