Cometic C5609-067 MLX Cylinder Head Gasket ISB - .067 inch Bore 4.312 inch | 2007-2010 Dodge RAM 2500/3500 6.7L Cummins

Features:

• Fits 2007–2010 6.7L Cummins engines
• .067" compressed thickness for reliable sealing
• 4.312" round bore for performance applications
• Five-layer stainless steel construction
• Armor-clad and graphite sealing materials
• Galvanized steel core adds strength and durability
• Designed to seal irregular mating surfaces
• Ideal for high-boost and high-load engines
• No re-torque required after installation
• Engineered for consistent combustion sealing
• Reduces bore distortion under heavy pressure
• Built for performance and longevity

When You Need A Gasket That Refuses To Quit

If you’re building up your 2007-2010 6.7L Cummins for more power, more boost, or just long-haul reliability, you need a head gasket that won’t back down when things get serious. The Cometic C5609-067 MLX Cylinder Head Gasket is made for exactly that. With five layers of stainless steel and reinforced materials like armor-clad and graphite, this gasket is built to handle the heat and pressure your Cummins is known to dish out. It’s a great match for high-performance builds, daily workhorses, and everything in between. The .067-inch compressed thickness strikes that balance between strength and fitment, sealing up your top end without compromising performance. Whether you're climbing grades with a loaded trailer or pushing the limits on a dyno, this gasket gives you the peace of mind to stay in it longer. When you want to build it once and build it right, this is the gasket that delivers.

Precision Built To Withstand The Diesel Grind

The Cometic C5609-067 MLX Head Gasket is designed with durability and sealing integrity in mind for the 6.7L Cummins platform. It features a round 4.312-inch bore and a compressed thickness of .067 inch, ideal for maintaining combustion seal without altering compression too aggressively. Its five-layer stainless steel construction includes a galvanized steel core, delivering superior rigidity under high cylinder pressures. Reinforced with armor-clad and graphite materials, the gasket can seal uneven or slightly irregular surfaces that might otherwise lead to leaks. This makes it especially effective for older engines or high-mileage blocks where deck perfection isn’t always guaranteed. The multi-layer design also helps distribute clamping force more evenly across the head, reducing the chance of localized blowouts or warping. It’s built to handle extreme thermal expansion cycles and boost pressure common in heavy-duty diesel use, without requiring re-torque after install. This gasket is a technical powerhouse, meant for serious builds that demand precision and performance from every part.

Fits: 2007, 2008, 2009, 2010 Dodge RAM 2500/3500 6.7L Cummins

Notes:

• Ensure compatibility with 2007–2010 6.7L Cummins engines
• Designed for 4.312" bore and .067" compressed thickness
• Constructed with five layers of stainless steel for durability
• Features armor-clad, graphite, and galvanized steel materials for sealing irregular surfaces
• Incorporates a locking bore seal for enhanced cylinder sealing
• Outer layers coated with Viton, heat resistant up to 482°F (250°C)
• No re-torque required after installation, simplifying maintenance
• Suitable for high-performance and high-load applications
• Professional installation recommended to ensure proper sealing
• Manufactured to order; allow 2–3 weeks for production and shipping