ISB CR Top End Gasket Kit - 4.100 inch Bore .061 inch

Features:

• Complete top end reseal solution
• Includes 4.100" MLX head gasket
• .061" compressed gasket thickness
• Race-proven technology for the street
• Built from high-quality premium materials
• Protects engine from leaks and damage
• Includes MLS exhaust manifold gasket
• Pushrod and valve cover gaskets included
• Turbo inlet and intake gaskets included
• Fuel injector seal kit included
• No additional seals or gaskets needed
• Designed for 2003–2007 5.9L Cummins

This Kit Gives You Everything You Need Up Top

If you’re tearing into the top end of your 2003-2007 Dodge 5.9L Cummins, don’t cut corners on gaskets. The Cometic PRO3003T StreetPro Top End Gasket Kit is a one-and-done solution built to make sure your engine is sealed up right the first time. From the 4.100-inch MLX multi-layer head gasket to the intake, exhaust, and turbo gaskets, everything you need to finish the job is in the box. No more running back and forth for that one missing seal or hoping that reused parts won’t give out later. These gaskets are made from high-quality materials and designed to take serious heat and pressure, whether you’re daily driving, towing, or laying down power. Cometic built this kit with the same R&D and performance standards that go into their race-winning setups, so you’re not just buying a gasket set, you’re investing in reliability. If you’re serious about keeping your Cummins sealed and stress-free, this is the kind of kit you want in your corner.

Sealing Technology You Can Trust With Every Turn

The PRO3003T kit from Cometic is a complete top-end gasket set that blends street-level reliability with motorsport-grade engineering. At its core is the 4.100-inch bore MLX head gasket, built with a multi-layer stainless steel structure and integrated stopper layer to provide superior combustion sealing. This design helps prevent head lift and minimizes cylinder bore distortion under high cylinder pressures, making it perfect for both stock and modified Cummins builds. The included MLS exhaust manifold gasket, along with the valve cover, intake, and turbo gaskets, are all crafted to handle intense thermal cycling and vibration without breaking down. Valve stem seals, pushrod cover gasket, thermostat seal, and even an injector O-ring kit round out this package for a fully resealed upper end. With a compressed thickness of .061 inch, this head gasket strikes a smart balance between durability and proper clamping force. Whether you're rebuilding after a failure or upgrading to handle more boost, this kit delivers proven sealing performance you can count on.

Fits: 2003, 2004, 2005, 2006, 2007 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Ensure compatibility with 2003–2007 5.9L Cummins engines
• Kit includes a 4.100" bore, .061" thick MLX head gasket
• Designed for 24-valve common rail (ISB CR) engines
• Not intended for 12-valve or 6.7L Cummins engines
• Verify gasket thickness requirements for modified engines
• Includes all necessary top-end gaskets and seals
• Manufactured to order; allow 2–3 weeks for production
• Professional installation recommended for optimal sealing
• Compatible with both aluminum and cast iron components
• Ideal for performance and high-load applications