Cometic C5855-067 .067 inch MLX Cylinder Head Gasket - 4.100 inch Bore | 1998-2002 Dodge RAM 2500/3500 5.9L Cummins

Features:

• Multi-layer stainless steel construction
• .067" compressed thickness
• 4.100" bore diameter
• Integrated stopper layer for superior sealing
• Embossed Viton-coated outer layers
• Heat resistant up to 482°F (250°C)
• No re-torque required after installation
• Ideal for aluminum or cast iron blocks
• Reduces bore distortion under load
• Designed for high-performance applications
• Compatible with stock and modified engines
• Made in the USA

Built To Handle The Pressure When Performance Matters Most

When you're pushing your 1998-2002 Dodge RAM 2500 or 3500 with a 5.9L Cummins, the last thing you want to worry about is a blown head gasket. The Cometic C5855-067 MLX Cylinder Head Gasket steps up with dependable sealing power designed to thrive under intense pressure and heat. Whether you're towing heavy loads, climbing steep grades, or running a high-performance setup, this gasket keeps things locked down tight where it counts. Its multi-layer stainless steel construction isn't just tough, it’s built to flex and seal with precision, even as your engine cycles through extreme conditions. The .067-inch compressed thickness and 4.100-inch bore deliver a perfect fit that supports both stock and modified configurations. You also won’t have to mess with retorquing the head bolts after installation, which means more time driving and less time wrenching. If you demand reliability from your diesel build, this gasket has your back mile after mile.

Engineered To Seal Under The Toughest Conditions

The Cometic C5855-067 MLX Cylinder Head Gasket is a precision-engineered solution designed for demanding diesel performance. It uses multi-layer stainless steel (MLS) technology, combining embossed Viton-coated outer layers with an integrated center stopper layer to optimize combustion sealing. This design minimizes bore distortion and allows the gasket to maintain consistent pressure across the cylinder head, even during high cylinder pressures and thermal expansion. The .067-inch compressed thickness and 4.100-inch bore make it an ideal match for high-performance Cummins engines, particularly in towing or racing applications. Its materials are heat resistant up to 482°F, ensuring stability and durability under extreme engine loads. The gasket also accommodates both aluminum and cast iron block and head combinations, allowing for a versatile installation. For builders and tuners looking to avoid common sealing failures and maximize long-term performance, this gasket offers a smart, proven upgrade.

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

Notes:

• Verify compatibility with 1998-2002 Dodge 5.9L Cummins engines
• Intended for performance and high-load applications
• Requires clean and flat mating surfaces for proper seal
• Gasket thickness (.067") may affect compression ratio
• Designed for use with 4.100-inch bore cylinders
• Not a universal-fit gasket – confirm bore and thickness needs
• No re-torque needed, but proper torque sequence is critical
• Works with both aluminum and cast iron heads/blocks
• Installation by experienced technicians is recommended
• May not be suitable for engines with major head/block warping
• Ensure proper head bolt specs and torque values are followed