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

    (11)

    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...

    (11)

    $479.00
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  • Cummins exhaust manifold 12V Cummins manifold

    T3 Manifold for 12v Cummins 1989-98

    (6)

    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...

    (6)

    $429.00
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  • 5.9 Cummins Exhaust Manifold Cummins Exhaust Manifold

    T3 Manifold for 24v Cummins 1998.5-2002

    (12)

    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%...

    (12)

    $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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  • ISX15 exhaust manifold X15 exhaust manifold

    DPS Cummins ISX15 | X15 Exhaust Manifold

    (1)

    DPS Performance Replacement Manifold for Cummins ISX15 | X15 Exhaust Manifold Optimize your Cummins ISX15 and X15 engines with the DPS EGR Exhaust Manifold. Engineered to maximize airflow and reduce turbo lag, this manifold helps your engine perform at...

    (1)

    $1,095.00
  • Non-EGR Cummins ISX Manifold isx cummins manifold

    T6 Exhaust Manifold for Cummins ISX fits S400

    (1)

    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)

    $1,049.00 - $1,299.00
  • T4 Manifold Exhaust Manifold fits Dodge Cummins

    T4 Manifold Center Mount 98.5-2018 *NOT STOCK / OEM

    (1)

    T4 Exhaust Manifold for Cummins Center Mount 1998.5-2002 *NOT for STOCK / OEM REPLACEMENT** ** 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...

    (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 STOCK / OEM

     6.7 Cummins Exhaust Manifold Upgrade For 2007.5-2018 Dodge Cummins 6.7 | T4  *NOT STOCK / OEM Replacement T-4 FLANGE WILL NOT FIT FACTORY TURBO! Fits 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 6.7L EGR...

    $449.00
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  • 3G exhaust manifold bolt kit

    2003-2018 Spin Lock Manifold Bolt Kit

    (4)

    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...

    (4)

    $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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  • T3 Manifold Gasket

    T3 Turbo Manifold Gasket - Divided

    T3 Turbo Gasket For Dodge Cummins 5.9L 24V 1989-2007 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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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.