Transmission Cooler Recommendation for a 1999 Ford F-250 Super Duty with 7.3 Liter Powerstroke


I have a early 1999 F250 Superduty 7.3 Powerstroke with 4r100 Trans, I wish to add an extra Trans Cooler to help pull a 30 travel trailer in the mountains I would like to keep the OEM Cooler and remote mount the Extra Cooler


Expert Reply:

You can certainly use the Derale 24 Inch Frame Rail Fluid Cooler, # D13225, for your 1999 Ford F-250. You would also need Derale Radiator Adapter Fittings, # D13025, for the 7.3 liter Powerstroke. Any transmission cooler will could essentially be considered a remote mount application. I have included a link to the coolers recommended for your truck and engine. I have also included a link to our transmission cooler FAQ article and a video showing a typical installation.

For your truck and the mountainous terrain, I recommend the Derale Transmission Cooler, # D12904, with the D13025 fittings mentioned above. This is a class IV cooler rated for up to 12,000 pounds gross trailer weight.

expert reply by:
Michael H

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