Cometic C5726-040 MLS Exhaust Manifold Gaskets for 1998-2007 Dodge Ram 5.9L

Vehicle Fitment

• 1998.5-2007 Dodge Ram 2500 (5.9L Cummins 24V ISB Diesel)
• 1998.5-2007 Dodge Ram 3500 (5.9L Cummins 24V ISB / ISB Common Rail Diesel)

Fitment Notes

• Fits 24-valve Cummins ISB and ISB Common Rail (CR) engines only - does not fit 12-valve 5.9L Cummins (1989-1998)
• Turbo downpipe/flange gasket is not included - sold separately
• Gasket covers 3 exhaust ports per piece; set includes 2 gaskets for full manifold coverage

Features

• Multi-Layer Steel (MLS) construction with embossed stainless steel layers for extreme durability
• Maintains a consistent torque set - resists loosening under thermal cycling
• Will not burn through or blow out under high exhaust temperatures and pressure
• Compatible with all combinations of cylinder head and exhaust manifold materials
• No sealants required - installs dry for clean, reliable sealing
• Even clamp load distribution reduces warping and surface distortion
• Excellent corrosion resistance for long service life in harsh diesel environments
• Direct-fit replacement - no modifications required for installation

Specifications

• Part Number: C5726-040
• Material: Uncoated Multi-Layer Steel (MLS)
• Compressed Thickness: 0.040"
• Port Shape: Round
• Port Size: 1.692"
• Ports Per Gasket: 3
• Position: Exhaust Manifold (Left and Right)
• Application: Dodge Cummins 5.9L 24V ISB / ISB Common Rail Diesel

Included Components

• 2x Cometic MLS Exhaust Manifold Gaskets (3-port, C5726-040)

Product Description

The Cometic C5726-040 is a premium Multi-Layer Steel exhaust manifold gasket set engineered specifically for the 1998.5-2007 Dodge Ram 5.9L 24-valve Cummins diesel engine. Built to withstand the intense heat and pressure cycles of a turbocharged diesel, these gaskets maintain a reliable torque set without the risk of blowout, burn-through, or leakage over time. No sealants are needed, making installation straightforward and clean.

This set includes two 3-port gaskets providing full exhaust manifold coverage for the inline-6 Cummins layout. The embossed MLS design evenly distributes clamping load across the sealing surface, preventing warping and keeping the manifold sealed even after repeated heat cycles. Whether you're doing a routine manifold replacement or a full engine build, the C5726-040 delivers a dependable OEM-quality seal with performance-grade materials.