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Dodge Ram 5.9L Diesel Intercooler 1994-2002

  1. The Mishimoto 2nd-Generation Cummins Intercooler, Part 4: Product Testing and Results

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 4: Product Testing and Results

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    After running into some testing issues (transmission problems) with one of our donor trucks, we began looking for a new truck to bring into the garage for data collection. We decided to target a modified truck, assuming those interested in our Cummins intercooler kit would better relate to any benefits we would see on something pushing more power. After putting out a request for local volunteers, we finally struck gold with a well modified 24V that was relatively local, and the owner was willing to make the drive to help us out.

    The Truck!

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  2. The Mishimoto 2nd-Generation Cummins Intercooler, Part 3: Prototype Evaluation and Test Fit

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 3: Prototype Evaluation and Test Fit

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    Mishimoto intercooler dyno testing
    Mishimoto intercooler dyno testing

    We included a teaser shot of our prototype cooler toward the end of our last update. Now it is time to provide a more in-depth look at our intercooler.

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  3. The Mishimoto 2nd-Generation Cummins Intercooler, Part 2: Factory Cooler Data and Mishimoto Design

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 2: Factory Cooler Data and Mishimoto Design

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    Cummins factory intercooler
    Cummins factory intercooler


    The factory inlet/outlet portions of this intercooler are quite interesting. They are shaped to route around the radiator support; however, this has a significant impact on the airflow through this part of the cooler. This bottleneck cannot be eliminated unless users want to grab the Sawzall and shred some steel. We will be

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  4. The Mishimoto 2nd-Generation Cummins Intercooler, Part 1: Project Intro and Factory Cooler Removal

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 1: Project Intro and Factory Cooler Removal

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    12V and 24V Cummins in shop
    12V and 24V Cummins in shop

    After being hounded by second-generation owners for months, our team decided it was time to fulfill their needs and develop an awesome intercooler upgrade for the 12V and 24V. We would be designing our cooler with a few key features that would set it apart from

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