BD Diesel 1045970 Exhaust Manifold for 2019-2024 Ram 6.7L Cummins Cab & Chassis

Cummins inline-6 engines are notorious for cracking their long, one-piece cast-iron manifolds, a problem that still affects many RAM trucks. BD Diesel’s exhaust manifold solves this with a thick-wall casting and slip-joint center section, allowing natural expansion and contraction to greatly reduce the risk of cracks. Its divided Pulse Manifold design optimizes exhaust flow by harnessing the engine’s natural exhaust pulses for smoother operation and drivability. Fully emissions-compliant, the manifold also comes pre-drilled with an EGT probe port for easy monitoring.

Key Features

• Fits Ram 3500, 4500, & 5500 Cab & Chassis Only
• Thick-wall casting resists high-heat cracking for long-term durability
• Two-piece slip joint reduces stress from heat cycles to prevent failure
• Divided pulse design improves exhaust flow to better spool and power the turbo
• Pre-drilled EGT port makes aftermarket gauge installs simple
• Direct stock replacement with full EGR compatibility for easy fitment
• Includes turbo and EGR studs for secure mounting
• Replaces OEM Part #68444859AA
• 3 Year / 75,000 Mile Manufacturer Warranty

Whether your truck is stock or modified, this is the perfect upgrade for reliability and durability. Available as a standalone manifold or with a complete installation kit (Part Number 1046070) including new bolts, spacers, and gaskets.