Cometic C5725-040 6BT MLS Exhaust Manifold Gasket Set - .040 | 94-98 Dodge RAM 2500/3500 5.9L 12V Cummins

Features:

• Fits 1994–1998 Dodge RAM 2500 and 3500
• Designed for 5.9L 12V Cummins 6BT engines
• Multi-layer steel gasket for superior durability
• .040 inch compressed thickness for optimal sealing
• Rectangular port shape for precise fitment
• Port size measures 1.414 x 1.93 inches
• Ideal for high-performance or heavy-duty applications
• Reinforced to seal against irregular surfaces
• Constructed with armor-clad and graphite layers
• Resists high heat and exhaust gas pressure
• Minimizes blowout risk under boosted conditions
• Trusted Cometic quality for long-term reliability

Trust The Seal That Keeps Your Cummins Breathing Right

If you're chasing more power, better flow, or just replacing a worn-out manifold, don't overlook the gasket that keeps it all sealed up tight. The Cometic C5725-040 MLS Exhaust Manifold Gasket Set is made to hold up to the heat, pressure, and abuse that 12-valve Cummins owners are known to throw at their trucks. Whether you're rolling coal at the track or just keeping your daily tow rig running strong, this gasket is a no-brainer upgrade over stock. With multi-layer steel construction and armor-clad reinforcement, it’s built to seal irregular surfaces and resist the kind of blowouts that sideline lesser gaskets. The .040 inch compressed thickness gives you the sealing surface you need, and the rectangular port design ensures a proper fit every time. It’s the type of part that does its job quietly, so you can focus on getting work done or laying into the throttle. If you're building with durability in mind, this gasket set checks all the boxes.

Engineered To Seal Exhaust Flow Under Extreme Conditions

The Cometic C5725-040 Exhaust Manifold Gasket Set is built with race-proven technology for the 1994 through 1998 Dodge 5.9L 12-valve Cummins platform. This gasket features a .040 inch compressed thickness and rectangular port design, sized precisely at 1.414 x 1.93 inches to match the 6BT exhaust layout. Its multi-layer steel (MLS) design incorporates reinforced materials like armor-clad and graphite to create a durable barrier between your manifold and cylinder head. These materials allow for exceptional resilience under high heat and exhaust pressure, helping prevent leaks and sealing inconsistencies common in older or boosted diesel engines. The gasket conforms to irregular flange surfaces, making it especially effective for trucks running aftermarket manifolds or under high mileage. Whether you’re tuning for performance or just maintaining long-term reliability, this gasket ensures maximum exhaust flow and sealing performance where it matters most. It’s a smart investment for any diesel enthusiast focused on precision and longevity.

Fits: 1994, 1995, 1996, 1997, 1998 RAM 2500/3500 5.9L 12V Cummins

Notes:

• Designed for 1994–1998 Dodge RAM 2500 and 3500 with 5.9L 12-valve Cummins engines
• MLS (multi-layer steel) construction provides long-term durability
• .040 inch compressed thickness ideal for high-performance sealing
• Rectangular port shape with 1.414 x 1.93 inch dimensions
• Engineered to handle high exhaust temperatures and pressure
• Ideal for modified or high-mileage engines with uneven surfaces
• Reinforced with armor-clad and graphite for sealing irregularities
• Recommended when upgrading or replacing exhaust manifolds
• Prevents exhaust leaks and blowouts under heavy use
• Made by Cometic, a trusted name in race-proven gasket technology