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2003-2004 Dodge Ram 5.9L Cummins | Exhaust Manifold

As many owners of 2003-04 Dodge Ram 5.9L Cummins have come to find out, the factory exhaust manifold has a severe flaw...it cracks! The problem lies in the tendency of the exhaust manifold to overheat ... read more

BD 2-Piece Pulse Exhaust Manifold 03-07 5.9L Dodge Cummins 1045987 BD-1045987 30.00 BD 2-Piece Pulse Exhaust Manifold 03-07 5.9L Dodge Cummins 1045987 BD-Power 1045987 Diesel Power Products carries the BD 2-Piece Pulse Exhaust Manifold for 03-07 5.9L Dodge Cummins 1045987 AFE 46-40011 BladeRunner Stainless Exhaust Manifold 03-07 5.9L Dodge Cummins AFE-46-40011 25.00 AFE 46-40011 BladeRunner Stainless Exhaust Manifold 03-07 5.9L Dodge Cummins AFE 46-40011 Eliminate warped and cracked manifolds with the AFE Stainless BladeRunner Exhaust Manifold for your Cummins. HP Inferno Heat Wrap Up to 2000 Degrees F HP-325001-Main 0.00 HP Inferno Heat Wrap Up to 2000 Degrees F Heatshield Products 325001 Diesel Power Products offers HP Inferno Heat Wrap Up to 2000 Degrees F ATS 2049422272 Pulse Flow Wide Flange T4 Exhaust Manifold 03-07 5.9L Cummins ATS-2049422272 25.00 ATS 2049422272 Pulse Flow Wide Flange T4 Exhaust Manifold 03-07 5.9L Cummins ATS Diesel Performance 2049422272 Power Products carries the ATS Diesel Performance Pulse Flow Wide Flange T4 Exhaust Manifold 2003-07 5.9L Dodge Cummins 204-942-2272 BD Power T4-T3 Adapter Flange PowerStroke/Cummins/Duramax BD-1044106 2.00 BD Power T4-T3 Adapter Flange PowerStroke/Cummins/Duramax BD-Power 1044106 BD's Adapter Flange will allow you to easily adapt a T4 turbo on to a T3 exhaust manifold. ATS 2049202272 Pulse Flow T3 Exhaust Manifold 03-07 5.9L Cummins ATS-2049202272 25.00 ATS 2049202272 Pulse Flow T3 Exhaust Manifold 03-07 5.9L Cummins ATS Diesel Performance 2049202272 Power Products carries the ATS Pulse Flow T3 Exhaust Manifold 03-07 5.9L Cummins AFE BladeRunner Ductile Iron Exhaust Manifold 03-07 5.9L Cummins AFE-46-40012 25.00 AFE BladeRunner Ductile Iron Exhaust Manifold 03-07 5.9L Cummins AFE 46-40012 Eliminate warped and cracked manifolds with the AFE BladeRunner Exhaust Manifold for your Cummins. ATS Pulse Flow T3 Wastegated Exhaust Manifold 03-07 5.9L Cummins ATS-2049222272-Main 0.00 ATS Pulse Flow T3 Wastegated Exhaust Manifold 03-07 5.9L Cummins ATS Diesel Performance 2049212272 The factory exhaust manifold on Common Rail Cummins is known for cracking and warping, replace it with a high flowing ATS Pulse Flow Manifold. ATS 2049432218 Pulse Flow T4 Big Foot Exhaust Manifold 98.5-02 Cummins ATS-2049432218 25.00 ATS 2049432218 Pulse Flow T4 Big Foot Exhaust Manifold 98.5-02 Cummins ATS Diesel Performance 2049432218 Get the exhaust out and prevent cracked manifolds on your 24 Valve Cummins with the ATS T4 BIG FOOT Manifold! BD Power T6-T4 Adapter Flange PowerStroke/Cummins/Duramax BD-1044110-main 0.00 BD Power T6-T4 Adapter Flange PowerStroke/Cummins/Duramax BD-Power 1044110 BD's Adapter Flange will allow you to easily adapt a T6 turbo on to a T4 exhaust manifold. Stainless Steel Exhaust Manifold Header Flange 98.5-18 5.9L / 6.7L Cummins DPP-SS24VHEADER 5.00 Stainless Steel Exhaust Manifold Header Flange 98.5-18 5.9L / 6.7L Cummins Generic Manufacturer DPP-SS24VHEADER Built your own header with this quality two piece stainless header flange. BD Power T4 Pulse 3 Piece Exhaust Manifold 98.5-18 5.9L / 6.7L Ram Cummins BD-1045995-T4 24.00 BD Power T4 Pulse 3 Piece Exhaust Manifold 98.5-18 5.9L / 6.7L Ram Cummins BD-Power 1045995-T4 When upgrading to a T4 flanged turbo on your Cummins, you'll also need to upgrade the manifold, and there's no better option than a BD Pulse Manifold.

As many owners of 2003-04 Dodge Ram 5.9L Cummins have come to find out, the factory exhaust manifold has a severe flaw...it cracks! The problem lies in the tendency of the exhaust manifold to overheat, causing it to expand, and then contract when it cools. All of this expanding and contracting takes its toll on the cast manifold, causing it to create heat-induced cracks. Fortunately, we have numerous solution for this!

Cracked Manifold

We carry 2-piece ported exhaust manifold from BD, ATS, Industrial Injection, and PDI. These manifolds are superior because of their 2-piece design, allowing them to expand and contract, but "slip" along the joints, thus not allowing it to crack. We also carry one piece stainless steel manifolds, that simply due to their material, will not be subject to damage caused by heat cycles.

Further, the factory manifold on 2003 to current model year Cummins is not square on the head. Essentially, the manifold is centered on ports four and five, towards the back, thus you are not receiving equal cylinder distribution. For those looking to alleviate this issue, we offer manifolds originally intended for use on 1998.5-2002 Cummins that will bolt directly to the head. In doing so, you will be required to replace or modify your air intake, downpipe, and turbo oil feed lines due to the new placement of the turbo. Now, is this offset design a huge dilemma for most? No, on even moderately built engines it is not crucial, but for those that are truly "building" their engine for superior performance, it is a great upgrade when looking at turbo and manifold options.

As always, if you have any questions about fitment or which manifold is right for you, do not hesitate to give us a call and we would be happy to assist.

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