Cometic C5855-080 ISB MLX Cylinder Head Gasket - .080 inch Bore 4.100 inch | 1998-2002 Dodge RAM 2500/3500 5.9L Cummins

Features:

• Fits 1998–2002 5.9L Cummins engines
• .080" compressed thickness for extreme sealing
• 4.100" round bore for precise combustion control
• Seven-layer stainless steel MLX construction
• Reinforced with armor-clad and graphite materials
• Galvanized steel core increases structural strength
• Seals irregular and worn engine surfaces
• Designed for high boost and heavy loads
• Reduces bore distortion under high pressure
• No re-torque needed after installation
• Ideal for performance diesel engine builds
• Improves long-term head-to-block sealing

Built For Big Power And Even Bigger Demands

If you’ve got a 1998–2002 Dodge 5.9L Cummins and you’re cranking up the boost or hauling serious weight, the Cometic C5855-080 MLX Cylinder Head Gasket is the kind of upgrade that belongs in your toolbox. This isn’t your average head gasket, it’s built with a massive .080-inch compressed thickness and a rugged 7-layer stainless steel structure that’s ready to handle extreme pressure and heat. Whether you’re rebuilding after a failure or preparing for more horsepower, this gasket keeps your combustion chamber sealed tight and your truck running strong. It’s the ideal match for high-performance builds where stock parts just won’t cut it anymore. The reinforced materials like graphite and armor-clad help create a seal even on rough or worn surfaces. That means fewer worries about blowouts and more time putting your Cummins to work. If you’re building for power and peace of mind, this gasket delivers both.

Designed To Reinforce The Seal Under Extreme Load

The Cometic C5855-080 MLX Cylinder Head Gasket is engineered for high-stress diesel performance, featuring a 4.100-inch round bore and an industry-grade .080-inch compressed thickness. Its seven-layer stainless steel construction includes a galvanized steel core for rigidity and strength, making it ideal for engines under high boost or severe thermal conditions. The gasket’s MLX design incorporates outer layers coated with high-temperature polymer and reinforced with graphite and armor-clad materials to handle uneven surfaces without compromising the seal. These design elements work together to reduce bore distortion and improve overall combustion stability. The increased thickness also helps accommodate slight warping or decking differences, offering a more forgiving fit in engines that have seen wear. No re-torque is needed after install, which adds convenience during assembly and service. This gasket is an excellent choice for builders and technicians who demand long-term durability and sealing performance in high-output Cummins platforms.

Fits: 1998, 1999, 2000, 2001, 2002 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Designed specifically for 1998–2002 Dodge RAM 2500/3500 5.9L Cummins engines
• .080" thickness is ideal for engines with resurfaced heads or decks
• 7-layer stainless steel construction provides maximum sealing strength
• Engineered to handle extreme cylinder pressure and heat
• Armor-clad and graphite layers help seal irregular surfaces
• Galvanized steel core adds structural support under high clamp loads
• No re-torque required after installation, saving time and labor
• Intended for high-performance, high-boost, and heavy-duty builds
• Professional installation recommended for best performance and fitment
• Verify surface flatness and finish prior to installation
• Made to order – allow 2–3 weeks for processing and delivery