Mishimoto 6.0L 37 Row Transmission Cooler

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Mishimoto 6.0L 37 Row Transmission Cooler

  • Direct fit for the 2003–2007 Ford 6.0L Powerstroke, also drops into 99-03 7.3L if you adapt the line size
  • Proven up to 10°F (+5.6°C) drop in transmission fluid temperature with no additional fluid pressure drop
  • No modification necessary for installation, functions with all stock equipment on 6.0L
  • 37-row stacked plate fluid cooler provides larger surface area over even the largest stock 31-row transmission cooler
  • Transmisson cooler core has a 21% increase in core volume compared to the factory 31-row transmission cooler
  • Increases transmission fluid capacity by 1/3 qt
  • Mishimoto Lifetime Warranty


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  • 5
    It works

    Posted by Jason on Aug 5th 2020

    Bone stock 2002 Excursion with a 7.3 and 168k miles. In Central Tx, I was seeing an ECU read 180-190 degrees in 95+ degree weather, empty. Now I see 165-170. I haven't towed with this much just an hour one way on a couple of trips with my 36ft camper with 3 slides which weighs 9200 lbs empty. I grossed 17.5k on a set of Cat scales with just me and the empty camper. I'm guessing loaded with the family it's around 18.2k. 8 to 10 miles of 45-50 mph roads before I can hit highway speeds and the trans temp maxed at 187 with 100 degree outside temps. Within a couple of miles at 65-70, trans temp would cool to 180-181 which is cooler than what I was running empty.

    I used the rubber bushings and washers from the box, make sure you look for them, I almost didn't find them. The one thing I would do different is to use 90 degree elbows at the inlet and outlet of the cooler because the bend in the hose is tighter than I would like. I did pull the grill and bumper and had to trim the bottom corners of the upper mounting tabs.

  • 5
    Nice product ..

    Posted by MIKE GARLAND on Jul 21st 2020

    Fit perfectly .. needs to come with lines tho.. would be nice if they offered pre formed lines ..

  • 5
    Great upgrade

    Posted by Stephanie on Jul 8th 2020

    Arrived quickly and not damaged. Easy to install. Has made a drastic change in my transmission temperatures. No longer overheats on the highway while pulling a load.

  • 5
    10 degree drop in temp for 7.3 Excursion

    Posted by Steven Hockman on Mar 12th 2019

    I installed the Mishi trans cooler in my 03 Excursion 7.3. Installl went quick with the 7.3 to 6.0 adapters (you need 2). So far I'm getting a consistent 10 degree drop in trans temps. As always great service from Riffraff!

  • 5
    Best trans cooler

    Posted by Jake on Jan 7th 2019

    I installed this cooler on my 2001 f250 and the fit was easy and clean. I had removed the front clip from the truck to replace with a new one so getting the new cooler into its place was not an issue at all

  • 5
    Big difference

    Posted by Unknown on Sep 13th 2018

    Installed this on 7.3l and replaced the small cooler and running 30-40 degrees cooler around town and towing. Also heats up much slower. I am running it with a deep tranny pan too. With the deeper pan it ran 5-10 degrees cooler but warmed up much slower so with this even slower to heat up and much cooler. Very happy and easy to install. Quality product.

  • 5
    Big Improvement!

    Posted by Andrew on Aug 27th 2018

    Keeps transmission temps low and easy installation.
    Running 110-150°C

  • 5
    Fits like a charm

    Posted by Unknown on Jan 26th 2018

    I was a little off set by the reviews on the web of this unit going into a 00 7.3, like had to re-drill for their truck, my install was simple bolt up along with 1/2 inch to 3/8 inch hose adapter's and I'm running cooler all the time, I haul light regularly but still a 110 - 120 degree trans temp while towing is great.

  • 5
    Great upgrade

    Posted by Rick on Jun 20th 2017

    I used it on my 00 7.3 it fit better then what most people said it would. Been in for a week and so far so good !! Plain on using more of mishimoto products!!