Diesel Power Source

2003-2007 5.9 Cummins 3rd Gen Exhaust Manifold - DPS

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2Pc 3rd Gen Cummins Exhaust Manifold for 2003-07 Dodge 5.9 Cummins Exhaust Manifold T3 Fits 2003 2004 2005 2006 2007 5.9 Dodge 5.9 Cummins The Best Exhaust for 5.9 Cummins ! ** Legal for installation …
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2Pc 3rd Gen Cummins Exhaust Manifold for 2003-07 Dodge 5.9 Cummins Exhaust Manifold T3

Fits 2003 2004 2005 2006 2007 5.9 Dodge 5.9 Cummins

The Best Exhaust for 5.9 Cummins !
** Legal for installation and street use in California, California E.O. Exemption**

Diesel Power Source performance 5.9 Cummins Exhaust Manifold for 2003 - 2007 5.9 Cummins exhaust manifold replacement. Dodge Ram 2500 Exhaust Manifold is the best flowing manifold on the market. Fluid dynamic tested. Our 2 Piece design has expansion joints. Fits 2003 2004 2005 2006 2007 | 5135788AB and 5135788AC. Also fits Dodge 3500 trucks with Cummins.

The stock flange is a T-3.

The Diesel Power Source 5.9 Cummins Exhaust Manifold for the Dodge Cummins CR engine is the best exhaust manifold Dodge Cummins 5.9 diesel replacement on the market. DPS 2-Piece Manifold is cast from high nickel ductile iron (which can handle extreme heat without). We've designed this manifold based on Computational Fluid Dynamic (CFD) Testing, which will results in quicker turbo spool-up, and increases exhaust gas efficiency.

Stock manifolds are known to shrink significantly, causing manifold-cracking, gasket problems, and exhaust flow problems created by exhaust port misalignment. Our 2 Piece Manifold, on the other hand, allows manifold to expand and contract with heat, eliminating warping and cracking to the manifold, eliminating the dreaded manifold shrinkage.

This manifold flows much better than the factory Cummins Manifold. Our manifold lowers EGTs on the rear cylinders by 200 degrees.

Features Include:

  • Flows 23% more than the stock manifold.
  • Flow tested and balanced for increased balanced exhaust flow, while maintaining velocity for increased turbo spool up.
  • Keeps rear cylinders up to 200 degrees cooler
  • Includes block gaskets, and two bolts.
  • Drilled/Tapped ports for pyrometer and pressure fitting.
  • Made from Moly-Bendum Ductile Iron.
  • Black High Temperature Coating
  • Comes pressed together, pressure tested and ready to install
  • 5.9 cummins performance exhaust manifold

Don't make the mistake of a single piece stainless exhaust manifold. Stainless steel manifolds move (expand and contract), 2 times more than our manifold. So while the stainless manifold may not break, your head, bolts and gasket will.

Free shipping to the lower 48 states. When shipping to anywhere outside of the lower 48 states, additional shipping fees may apply.

You simply will not find a better flowing Dodge Cummins 3rd Gen Cummins Manifold. It is the best exhaust manifold 5.9 Cummins because it keeps the rear cylinders approx. 200 degrees cooler at 1500 degrees. If you're looking for the best exhaust for 5.9 Cummins DPS has your 3rd Gen Dodge Cummins Manifold !

**The DPS Dodge RAM Exhaust Manifold have been granted an exemption by CARB, which means they are legal to be installed and used in the state of California.

The DPS performance manifold for 2003-2007 common rail Cummins engine is both a great performance manifold and a factory replacement manifold. DPS 2-Piece Manifold is cast from high nickel Ductile Iron with expansion joints. Fits 2003 2004 2005 2006 2007 Dodge Cummins 5.9 3rd gen Ram truck.

DPS Performance Exhaust Manifold for 03-07 Dodge Cummins Common Rail. The best exhaust manifold for 5.9 Dodge Cummins diesels, outflows all competition. Direct factory replacement for 3rd gen 5.9 Cummins exhaust manifolds, OEM part number 5135788AB and 5135788AC.

Perfect replacement for the following 3rd gen Cummins manifolds:

2003 Dodge ram 2500 exhaust manifold
2004 Cummins exhaust manifold
2005 Dodge Ram 2500 exhaust manifold
2006 Dodge Ram exhaust manifold
2007 5.9 Cummins Exhaust Manifold

  • Awesome Manifold 5

    Posted by D Gray on Apr 9, 2024

    I've had this manifold for a few months and finally got around to installing it. Not a bad job but do yourself a favor and get a cap screw for the bottom hole on the number 5 cylinder. My truck is running like she is new again. Smoother acceleration. Faster spool up on the turbo. I put a straight edge on it before I installed it and it was perfect. Installation can be a pain but it's well worth it to me. Hoping to put the Artic Air intake on it soon if they get them back in stock.

  • Love this manifold 5

    Posted by Joanne on Feb 15, 2024

    Very happy with the product I received. It was shipped quickly and great customer service.

  • Thumbs up 4

    Posted by Greg Mace on Sep 29, 2023

    Good quality part fast shipping

  • Fast 5

    Posted by Lyle Erman on Jun 21, 2023

    This was shipped ridiculously fast!!! So impressed! Thank you!

  • A+++ 5

    Posted by Five Oh on Jan 8, 2023

    Great quality product came shipped well packaged and fast delivery And these things look amazing. Well built and happy to support a local Utah business!!!

  • 5.9L 3rd gen Manifold 5

    Posted by D Biegenwald on Nov 9, 2022

    picked up my new manifold and installed it over the weekend. I love it! Incredible difference. Silenced all the extra noise under my hood, turbo spools faster, hits hard and sounds amazing. I never have heard my turbo spool so loud. Throttle response is so much better. GREAT PRODUCT! worth the money and drive I did to pick it up!

  • Third Gen Exhaust Manifold 5

    Posted by Colton Walsh on Jan 21, 2022

    Great manifold for a great price. Shipped out same day I ordered. Hardest part of install was getting my old one out.

  • Great Manifold 4

    Posted by Mason S on Apr 25, 2021

    Good lookin manifold. Its nice that it comes with tapped ports for a pyrometer. Unable to monitor EGTs at the moment. Only issue I had with the manifold is the bottom stud on #5. Incredibly tight clearances between the manifold and nut making it near impossible to get a wrench or socket on it - i did though.... Other than that fitment and looks are nice!

  • 5.9 3rd gen manifold 5

    Posted by C Baake on Jul 31, 2019

    Very nice manifold. Bigger than stock. Just got done installing it. Pretty good difference over stock and sounds much better by giving the exhaust a lower tone.

2003-2007 5.9 Cummins 3rd Gen Exhaust Manifold - DPS

2003-2007 5.9 Cummins 3rd Gen Exhaust Manifold - DPS


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