Cometic C15173-040 MLX Cylinder Head Gasket for 2011-24 Chrysler/Dodge/Jeep/Ram

Vehicle Fitment

• 2011-2024 Chrysler 300 SRT8 (6.4L V8 HEMI, AWD/RWD)
• 2011-2014 Dodge Challenger SRT8 (6.4L V8 HEMI, RWD)
• 2015-2019 Dodge Challenger R/T Scat Pack / 392 (6.4L V8 HEMI, RWD)
• 2015-2018 Dodge Charger SRT 392 / R/T 392 (6.4L V8 HEMI, RWD)
• 2014-2019 Dodge Durango SRT (6.4L V8 HEMI, AWD)
• 2012-2019 Jeep Grand Cherokee SRT / SRT8 (6.4L V8 HEMI, AWD)
• 2014-2019 Ram 2500 / 3500 / 4500 / 5500 with 6.4L V8 HEMI (4WD / RWD)

Fitment Notes

• Left-Hand Side (LHS) cylinder head gasket only.
• Compatible with Gen-3 6.4L HEMI engines; **not** the 5.7L or 6.2L HEMI models. :contentReference[oaicite:0]{index=0}
• Bore size must be 4.150 inches; ensure block and head surfaces are properly prepped. :contentReference[oaicite:1]{index=1}
• Compressed thickness is 0.040 inches. :contentReference[oaicite:2]{index=2}

Features

• MLX (Multi-Layer Xtreme) stainless steel construction for superior seal under high cylinder pressure. :contentReference[oaicite:3]{index=3}
• Viton coated outer layers to improve fluid sealing against heads & block surfaces. :contentReference[oaicite:4]{index=4}
• No re-torque required after initial installation. :contentReference[oaicite:5]{index=5}
• Embossed layers to manage surface load distribution and reduce bore distortion. :contentReference[oaicite:6]{index=6}
• Designed to handle boosted, high-performance, and track use. :contentReference[oaicite:7]{index=7}
• Precision bore sizing (4.150") for proper sealing on Gen-3 6.4L HEMI. :contentReference[oaicite:8]{index=8}
• LHS designation ensures it matches the left side cylinder head contour & coolant/oil port layout. :contentReference[oaicite:9]{index=9}
• Made in USA with high quality materials. :contentReference[oaicite:10]{index=10}

Specifications

• Material: MLX Stainless Steel (Multi-Layer Xtreme) :contentReference[oaicite:11]{index=11}
• Bore Size: 4.150 inches :contentReference[oaicite:12]{index=12}
• Thickness: 0.040 inches (compressed) :contentReference[oaicite:13]{index=13}
• Position: Left-Hand Side (LHS) cylinder head :contentReference[oaicite:14]{index=14}
• Engine: 6.4L V8 HEMI, Gen-3 type :contentReference[oaicite:15]{index=15}
• Years Confirmed: 2011 through 2024; 2025 unconfirmed. :contentReference[oaicite:16]{index=16}
• Drivetrain types: RWD, AWD, 4WD depending on vehicle model. :contentReference[oaicite:17]{index=17}

Included Components

• 1x Cometic C15173-040 MLX Cylinder Head Gasket (LHS)

Product Description

The Cometic C15173-040 MLX Cylinder Head Gasket is purpose-built for the left-hand cylinder head of Gen-3 6.4L HEMI engines. With a bore of 4.150 inches and a compressed thickness of .040 inches, it provides a precise seal for high output, naturally aspirated or boosted builds. The MLX construction offers enhanced durability, with multiple stainless steel layers, viton coatings, and embossed surfaces to manage load and resist leakage under extreme combustion pressures. :contentReference[oaicite:18]{index=18}

Ideal for OEM replacement or performance upgrades in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L HEMI (2011-2024). Being the left side head gasket, it must be paired with the corresponding RHS gasket (e.g. C15172-040) for a complete rebuild. Note that 2025 fitment has not yet been confirmed in official catalogs. :contentReference[oaicite:19]{index=19}