Exhaust Manifold

Cummins Exhaust Manifolds for Diesel Trucks

You have reached Diesel Power Source’s Exhaust Manifolds Collection! Our precision-engineered manifolds are the heart of your diesel engine, optimizing airflow for maximum power and efficiency.

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  • 2003-2007 Exhaust Manifold Cummins 3rd gen Manifold

    T3 Manifold for 24v Cummins 2003-07

    (10)

    T3 Exhaust Manifold for 03-07 5.9 Cummins 3rd GenOEM replacement part for MOPAR PN 5135788ACA direct fit replacement performance manifold for 2003-07 5.9 Cummins in Dodge Pickups.This is a T-3 flange which is the same as the stock turbo.Our design is...

    (10)

    $479.00
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  • Cummins exhaust manifold 12V Cummins manifold

    T3 Manifold for 12v Cummins 1989-98

    (5)

    T3 Manifold for 12V Cummins Exhaust Manifold 1989-98 DPS presents a game-changing T3 Manifold for your 12V Cummins Exhaust, covering the years 1989-1998 for your Second Gen Cummins 12V. This is a direct factory bolt-on.  The factory manifold has a...

    (5)

    $429.00
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  • 5.9 Cummins Exhaust Manifold Cummins Exhaust Manifold

    T3 Manifold for 24v Cummins 1998.5-2002

    (11)

    DPS 3 Piece Exhaust Manifold 24V for 5.9 Cummins Exhaust ManifoldT3 FlangeYears 1998.5 1999 2000 2001 2002 2nd Gen** Legal for installation and street use in California, California E.O. Exemption** 24v Cummins 3 Piece Manifold Features:Flows 23%...

    (11)

    $399.00
    $429.00
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  • RV Manifold Fummins Exhaust Manifold

    T3 Manifold for 12v Fummins or RV

    (4)

    Ford Cummins Swap Exhaust Manifold | Fits 12V Ford Cummins Conversion | 12v Fummins Manifold T3Performance Fummins Exhaust Manifold For Ford Cummins Swap Kits12V 5.9 Cummins Motorhome Industrial 3931747, J901683, J931747 replacement.DPS Ford Cummins Swap...

    (4)

    $499.00
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  • Non-EGR Cummins ISX Manifold isx cummins manifold

    T6 Exhaust Manifold for Cummins ISX fits S400

    T6 Cummins ISX Manifold fits S400 & S410 Cummins ISX15 | X15 (Not a Stock Replacement)Upgrade Your 2008 - 2024 ISX15 Exhaust Manifold for Performance with DPS T6 Exhaust Manifold for Deleted Semis!Key Features of the 2008-2024 ISX15 Manifold:Lowers...

    $1,395.00 - $1,645.00
  • T4 Manifold Exhaust Manifold fits Dodge Cummins

    T4 Manifold Center Mount 98.5-2018 *NOT OEM

    (1)

    T4 Exhaust Manifold for Cummins Center Mount 1998.5-2002 *NOT OEM** Legal for installation and street use in California, California E.O. Exemption for pre-2007 vehicles*DPS T4 Exhaust Manifold for Dodge Cummins T4 manifold is a 3-Piece design to prevent...

    (1)

    $419.00
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  • 4th gen Cummins Manifold Cummins Manifold 6.7

    T4 Manifold for 6.7 Cummins 2007.5-2018 *NOT OEM

     6.7 Cummins Exhaust Manifold Upgrade For 2007.5-2018 Dodge Cummins 6.7 | T4T-4 FLANGE WILL NOT FIT FACTORY TURBO!Fits 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 6.7LEGR Compatible !DPS is the best 6.7 Cummins...

    $449.00
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  • 3G exhaust manifold bolt kit

    2003-2018 Spin Lock Manifold Bolt Kit

    (3)

    2003-2018 Spin-Lock Bolt Kit for Exhaust Manifold - Cummins Manifold Bolt KitOur bolts have teeth! Custom made 12 pcs serrated flange boltsSecure your DPS exhaust manifold using our Serrated Spin-Lock Bolt kit. Our custom made bolts providing a...

    (3)

    $29.99
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  • 24v exhaust manifold bolt kit

    24V Spin-Lock Bolt Kit 1998.5-02 Manifold Bolts

    (3)

    24V Spin-Lock Bolt Kit for 1998.5-02 Exhaust Manifolds - 5.9 Cummins exhaust manifold boltsOur bolts have teeth! Custom made serrated flange bolts.Flanged Serrated Spin Lock Bolt kit M10 x 1.5 x 35mm for DPS Exhaust Manifolds on Cummins Engines.Secure...

    (3)

    $29.99
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  • 10mm Spin Lock Bolt Kit

    12V Spin-Lock Bolt Kit for 1989-98 Manifolds

    (3)

    12V Spin Lock Bolt Kit For 1989-98 12V DPS ManifoldsOur bolts have teeth! Custom made serrated flange bolts.Flanged Serrated Spin Lock Bolt kit M10 x 1.5 x 35mm for DPS Exhaust Manifolds on Cummins Engines.Secure your DPS exhaust manifold using our...

    (3)

    $29.99
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  • 2003-2007 Exhaust Manifold Cummins 3rd gen Manifold

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

    (9)

    2Pc 24 valve Cummins Exhaust Manifold for 2003-07 Dodge 5.9 Cummins Exhaust Manifold T3Fits 2003 2004 2005 2006 2007 5.9 Dodge 5.9 CumminsThe Best Exhaust for 5.9 Cummins ! ** Legal for installation and street use in California, California E.O...

    (9)

    $479.00
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  • TBH0147 4.0 inch marmon

    S300 Wastegated Turbine Housing 71mm / 12cmm

    S300 Wastegated Turbine Housing 71mm / 12cm Exhaust outlet sizes: 4.0 half marmon (v-band HX40 outlet) 4.4 (4-3/8”) half marmon (v-band) 3rd Gen Fits: Borg Warner 71mm turbine wheel Flange: T3 A/R Ratio: 0.70 / 12cm Includes Wastegate Actuator /...

    $255.00
  • T3 Manifold Gasket

    T3 Manifold Gasket - Divided

    T3 Turbo Gasket For Dodge Cummins 5.9L 24V 1998.5-2007 With Divided Exhaust Inlet. Universal T3 Fitment The perfect replacement for your failing gasket, the DPS Turbo Exhaust Inlet Flange Gasket provides your T3 Divided Flange with a solid seal. DPS...

    $10.00
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  • T3 Manifold Gasket - non divided

    T3 Manifold Gasket – Non-divided

    Turbo Manifold Gasket for T3 Dodge Cummins 5.9L 24V 1998.5-2007.Universal T3 FitmentThe perfect replacement for your failing gasket, the DPS Turbo Exhaust Inlet Flange Gasket provides your T3 non-divided Flange with a solid seal. DPS recommends this...

    $10.00
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What is a Performance Diesel Exhaust Manifold?

A performance diesel exhaust manifold is a critical component in optimizing engine efficiency and power output. Let’s dive into what it is, how it works, and why upgrading to a performance manifold can transform your diesel driving experience.

What Is the Purpose of the Exhaust Manifold?

The exhaust manifold in a diesel truck serves a crucial role: it collects exhaust gases from each cylinder and channels them away from the engine. Here’s why it matters:

  1. Efficient Flow: By precisely directing exhaust gases, the manifold optimizes flow dynamics, reducing backpressure. This enhances overall engine efficiency.
  2. Heat Expansion: Unlike stock manifolds, performance manifolds are often three-piece designs. They allow slight movement to accommodate heat expansion and contraction. This prevents cracking and damage.
  3. Customization: Upgrading to a performance manifold can improve exhaust flow, boost power, and reduce lag. Whether you’re towing or chasing speed, it’s a smart investment.

How Often Should You Replace Your Exhaust Manifold?

  • Inspection Interval: Have your entire exhaust system inspected every two to three years, depending on driving conditions.
  • Signs of Wear: If the manifold appears worn or damaged, consider replacement to ensure safe driving conditions.