Cometic Street Pro Bottom End Gasket Kit

2011–2025 Chrysler, Dodge, Jeep & Ram 6.4L 392 HEMI

Part #: PRO1048B

Overview

The Cometic PRO1048B Bottom End Gasket Kit is a comprehensive sealing solution designed specifically for the 6.4L 392 HEMI engines found in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles from 2011 through 2025. This kit caters to enthusiasts and professional rebuilders seeking reliable, high-quality gaskets and seals for bottom end engine rebuilds or upgrades. The Street Pro series balances performance and value, providing durable materials that ensure a tight, long-lasting seal under street-driven conditions.

Whether you are rebuilding a Dodge Challenger, Charger, Jeep Grand Cherokee SRT8, Ram 2500/3500, or Jeep Wrangler with the 6.4L 392 HEMI, this gasket kit includes all necessary components to restore your engine’s sealing integrity and maintain optimal performance.

Key Features

Cometic’s PRO1048B kit is engineered with premium materials and designed for ease of installation, durability, and reliable sealing performance. Key features include:

• Complete bottom end gasket kit with all essential gaskets and seals for a full rebuild
• Utilizes advanced gasket materials including Multi-Layer Steel (MLS), Aramid Fiber, and Armor Clad composites
• Engineered to withstand high temperatures and pressures typical of the 6.4L 392 HEMI engine
• Reinforced gasket compounds provide excellent resistance to corrosion, tensile stress, and surface irregularities
• Custom tailored to fit a wide range of 6.4L 392 HEMI applications across Chrysler, Dodge, Jeep, and Ram models
• Manufactured with precision to OEM specifications for reliable sealing and leak prevention
• Ideal for street-driven vehicles requiring durable, cost-effective gasket solutions

Construction & Design

The PRO1048B kit features a combination of high-grade materials selected for their sealing performance and longevity. Multi-Layer Steel (MLS) gaskets provide superior strength and flexibility, ensuring a tight seal between engine components even under thermal cycling and mechanical stress. Aramid Fiber and Armor Clad materials add enhanced durability and resistance to wear, heat, and chemical exposure.

Cometic’s manufacturing process incorporates advanced engineering and quality control to produce gaskets that meet or exceed OEM standards. The use of corrosion-resistant alloys such as copper, aluminum, and stainless steel in gasket construction further enhances durability and sealing reliability in demanding engine environments.

Installation & Fitment

This gasket kit is designed for direct fitment on 6.4L 392 HEMI engines installed in the following vehicles:

• 2011–2014 Dodge Challenger 6.4L 392
• 2011–2023 Dodge Charger 6.4L 392
• 2012–2013 Jeep Grand Cherokee 6.4L SRT8
• 2014–2025 Ram 2500 6.4L 392
• 2014–2025 Ram 3500 6.4L 392
• 2015–2023 Dodge Charger 6.4L 392
• 2015–2023 Jeep Grand Cherokee 6.4L SRT8
• 2018–2025 Dodge Durango 6.4L 392
• 2021–2025 Jeep Wrangler 6.4L 392

Installation requires standard engine rebuild procedures and attention to proper torque specifications. The kit includes all necessary gaskets and seals to replace worn or damaged components during a bottom end rebuild, ensuring a reliable and leak-free assembly without the need for additional parts.

What's Included

• Multi-Layer Steel (MLS) head gaskets
• Aramid Fiber and Armor Clad seals and gaskets for oil pan, timing cover, and other bottom end components
• Valve cover gaskets
• Oil seals and O-rings as required for complete bottom end rebuild
• Comprehensive gasket set tailored to 6.4L 392 HEMI engine specifications

Ideal For

The Cometic PRO1048B Bottom End Gasket Kit is ideal for street performance enthusiasts, professional rebuilders, and anyone performing a bottom end rebuild or refresh on a 6.4L 392 HEMI engine. It suits those who demand reliable sealing solutions that combine quality materials with cost-effective pricing. This kit is perfect for restoring factory-level sealing integrity or upgrading to more durable gasket materials for enhanced longevity under street driving conditions.