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

    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)

    $489.00
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  • 6.7 cummins exhaust manifold OEM replacement manifold

    T4i Exhaust Manifold for 6.7 Cummins 2007.5-2018 | 5301441

    T4i 2Pc Cummins Exhaust Manifold for 6.7 Cummins 2007.5-2018 OEM Stock Replacement Manifold (OEM HE351 Mount) Experience unmatched performance with the T4i Exhaust Manifold for 6.7 Cummins Trucks from 2007.5 to 2018. Crafted with precision in the USA by...

    $509.00
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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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  • T3 Manifold Gasket - non divided

    T3 Turbo Manifold Gasket – Non-divided

    Turbo Manifold Gasket for T3 Dodge Cummins 5.9L 24V 1989-2007. Universal T3 Fitment The 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.