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Interested in purchasing our YJ/TJ electric fan setup? Check out more details on our product page linked below.

Mishimoto Jeep Wrangler YJ and TJ Performance Fan Shroud Kit

Quite the project this Jeep TJ electric fan shroud kit has been! We've gone through a few design iterations and conducted some pretty cool testing to ensure that our product will adequately cool both the 2.5L and the 4.0L.

Testing Results

The last portion of our article series showed the testing apparatus and our plans for extended idle testing with our Jeep TJ electric fan kit. We would be monitoring coolant temperatures to see the impact of an electric fan as opposed to a mechanical setup provided by the factory.

Testing Conditions

• Ambient temperature: 72°F
• Testing timeframe: 1400 seconds (23.3 minutes)
• Vehicle: Jeep Wrangler YJ 4.0L

First up, the results and plot for the stock mechanical fan.

Stock mechanical fan testing data

Inlet fluid temperatures hover at around 208°F with the stock fan at extended idle. Once

Interested in purchasing our 6.0L intake elbow?

If you are familiar with our brand, you know we have a vast product line of heat exchangers and associated products available for the Ford 6.0L Powerstroke. We've had great feedback from our customers about our existing products as well as the new products they would like to see come out of our garage. Now that we have our own 6.0L shop truck (shown below), we have easy access to a vehicle for product development and test fitting.

Mishimoto 6.0L shop truck

We decided to come up with our own rendition of an inexpensive, free-flowing intake elbow for the 6.0L. Yes, we realize there are ample options currently on the market. That said, we would like our design to have the following features.

• Great value and high quality materials
• Minimum 2 1/8" ports for sensors, nitrous, or meth injection
• Pipe design with optimal flow and smooth internal flow
• Includes all hardware needed for installation

After doing our research, we are quite certain that power

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 looking to reduce this restriction as much as possible with our design. Here is a look at the factory setup.

Factory intercooler outlet

Factory intercooler outlet

And a close-up shot of the tube-and-fin core.

Factory intercooler core

Factory Intercooler - Basic Dimensions

A couple dimensions are shown in the images below to give you an idea of the size of the factory cooler, assuming you've never measured yours!

Factory intercooler thickness

Interested in purchasing our YJ/TJ electric fan setup? Check out more details on our product page linked below.

Mishimoto Jeep Wrangler YJ and TJ Performance Fan Shroud Kit

Wrangler test vehicles in shop

Now that we had our initial shroud prototype prepared for testing, we installed it on the stock radiator and the Mishimoto aluminum radiator. We wanted to ensure that it fit perfectly and that it enclosed the full length and height of both radiator cores. Once complete, it was time to test the shroud within the engine bays of our test vehicles.

Mishimoto prototype installed on stock radiator

Jeep YJ Test Fitting

YJ test vehicle

First, we removed the stock mechanical fan.

Mechanical fan removed

Once the stock system was out of the way we dropped our prototype into position.

Mishimoto prototype installed

Mishimoto prototype installed

The electric fan was then bolted to the shroud.

Mishimoto prototype installed

On the 4.0L we need to pay close attention to the clearance between the water pump

Interested in purchasing our YJ/TJ electric fan setup? Check out more details on our product page linked below.

Mishimoto Jeep Wrangler YJ and TJ Performance Fan Shroud Kit

Jeep YJ in Mishimoto shop

Project Intro

After a few successful electric fan conversion projects, we chose yet another vehicle that could benefit from the removal of the stock clutch fan. Our previous endeavors involved BMWs that experienced frequent failures of the plastic stock clutch fan. After checking through potential applications and scouring the forums, our team chose the Wrangler as a prime subject for a reliable and efficient electric fan conversion kit.

Along with providing greater reliability, replacing the mechanical fan with an electric fan would reduce rotating mass and possibly free up a bit of power. Extra power is always welcome!

Stock Fan Setup

First, let's take a look at the stock fan setup equipped on both the Wrangler 4.0L and 2.5L vehicles. First up, the 4.0L.

YJ 4.0L stock engine bay

YJ 4.0L stock

Interested in purchasing this Coolant Filter Kit? Check out our product page for more information!

Mishimoto Ford 6.0L Powerstroke Coolant Filter Kit

We are nearing completion of this awesome project! With our bracket and housing finalized, it was time to fill in the gaps for the rest of the necessary components. First up, the filter selection. As mentioned earlier, we were looking for an efficient filter that could easily be purchased at any parts store. We went with the WIX 24070. Of course, any brand that will cross-reference with this filter will also function with our kit.

Filter Selection

Filter

A look at this filter mounted, with the necessary hardware for the bracket.

Filter, filter housing, and mounting hardware

Valves

Our next key components are the valves for the housing and lines. We will use ball-style valves for easy, reliable operation. Check out a couple shots of our plans for this component.

Valve for coolant filtration housing

Coolant filtration housing valve installed