Exhaust Manifolds

2007.5–2009 Dodge Ram 2500 & 3500 6.7L Cummins Exhaust Manifolds & Hardware

Eliminate annoying exhaust leaks, prevent warped factory castings, and restore optimal turbo-spooling velocity with premium 2007.5–2009 6.7L Cummins 3rd Gen exhaust manifolds from Full Force Diesel. Heavy-duty Ram 2500 and 3500 trucks working under intense commercial towing workloads or running high-output custom tuning subject their factory exhaust manifolds to extreme thermal cycling and high exhaust gas temperatures (EGTs). Over years of severe heating and cooling, stock one-piece iron manifolds inevitably warp, snap mounting bolts, and blow out gaskets, leading to loss of drive pressure, black soot under the hood, and sluggish turbo response. Upgrading to a heavy-duty, multi-piece performance exhaust manifold solves these thermal fatigue issues permanently.

Advanced Thermal Management: Multi-Piece Design and High-Silicon Ductile Iron

Transitioning away from a cracked factory manifold to an engineered performance replacement completely secures your exhaust side:

• Multi-Piece Expansion-Joint Design: Performance replacement manifolds feature a segmented, multi-piece architecture that allows individual runners to expand and contract freely under extreme thermal loads, completely eliminating the warping and cracking stress common to stock units.

• High-Silicon Ductile Iron Construction: Cast from heavy-wall, high-temperature ductile iron alloys, these manifolds resist scaling, oxidation, and structural distortion even when subjected to sustained high-EGT towing conditions.

Secure Sealing and Heavy-Duty Mounting Hardware

Our selection of exhaust manifold components features rugged hardware engineered for a permanent, leak-free installation:

• Precision-Machined Fling Surfaces: Every manifold features perfectly flat, machine-ground cylinder head mounting flanges to ensure a seamless seal across all six exhaust ports.

• High-Tensile Stud and Multi-Layer Steel Gasket Kits: Supplied with grade 12.9 hardware studs and heavy-duty multi-layer steel (MLS) gaskets designed to lock the manifold tightly against the head and withstand extreme exhaust backpressure.

At Full Force Diesel, we carry the rugged, street-tested mechanical hardware and machine-shop-certified components your transitional 3rd Generation inline-six needs to handle extreme exhaust heat. Explore our complete selection of 2007.5–2009 6.7L Cummins 3rd Gen exhaust manifolds, multi-piece kits, gaskets, and mounting hardware above to secure your truck's exhaust system reliability today.