Dodge Ram 5.9L Diesel Intercooler 1994-2002

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!

We've had a lot of very interesting vehicles in our shop in the past - various diesel trucks, high-horsepower Evos and STIs, and even a couple of fairly strong V8-powered vehicles. This one certainly makes the top five for interesting and unique test vehicles.

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

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.

Mishimoto intercooler prototype

Keep in mind that this prototype is a raw unit, void of any painting or coating. Our end product will be finished with a powder coat in either silver or black.

Mishimoto intercooler prototype

Mishimoto intercooler prototype

Mishimoto intercooler prototype

Check out our bar-and-plate core with some very nice welds!

Mishimoto intercooler prototype core

Mishimoto intercooler prototype welds

We are doing something a bit different with branding on this particular cooler. We decided to cast our company tag line into the driver-side end tank. It's subtle yet identifies the cooler

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

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

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 the factory unit.

• Cast aluminum end tanks for smooth airflow and unmatched durability
• Extremely efficient bar-and-plate core
• Direct fit for the 12V and 24V second-generation trucks

First Test Vehicle: 24V

After hunting around for a few local vehicles, this 24V ended up in our shop. A big thank you to the vehicle owner for lending us his truck for development.

24V Cummins in shop

Peering under the hood reveals a fairly clean engine bay.

24V Cummins factory engine bay

24V Cummins factory engine bay

Factory