Jon 15el
Member
They do have a cooler, it is part if the radiator. The aux cooler goes on front, receives fluid from radiator out put and the returns it to trans.
HD cooling upgrade.
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rdlangston13
Full Access Members
Yeah you def need the trans cooler. I have the HD tow package and our boat on the trailer is 6900 lbs. We towed it with probably an additional 200 lbs of luggage in it and 6 people in the Expedition from Houston to Brandon, MO and never saw over 207.
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johnboneske
Full Access Members
Don't forget weight for weight a boat will always tow cooler/better cause of the aero. They have a V shape in the front vs a camper having a flat area...
A good aftermarket cooler would work wonderful. Don't go to small though
I think one like this will be good:
Hayden Automotive 678 Rapid-Cool Plate and Fin Transmission Cooler https://www.amazon.com/dp/B000C3DDKO/ref=cm_sw_r_other_apa_ticNBbR4CPM9Z
A good aftermarket cooler would work wonderful. Don't go to small though
I think one like this will be good:
Hayden Automotive 678 Rapid-Cool Plate and Fin Transmission Cooler https://www.amazon.com/dp/B000C3DDKO/ref=cm_sw_r_other_apa_ticNBbR4CPM9Z
Interesting information here. It appears there are two radiator part #s on 15’ trucks. Some years had only 1 radiator and the trans cooler was optional.
Last edited:
Correct.
The tow prep package includes hitch and 4 pin wiring. Came with a smaller radiator that also cooled the trans.
The HD tow package includes hitch and 7 pin wiring. Heavy duty radiator and a separate transmission cooler.
The bracket for the trans cooler is there on the prep package.
I have not had a chance to see how the hoses are different to accommodate the transcooler. But I am guessing one just needs to put the hoses from the trans to the transcooler instead of the radiator and buy to hoses to go from the radiator to the transcooler.
The tow prep package includes hitch and 4 pin wiring. Came with a smaller radiator that also cooled the trans.
The HD tow package includes hitch and 7 pin wiring. Heavy duty radiator and a separate transmission cooler.
The bracket for the trans cooler is there on the prep package.
I have not had a chance to see how the hoses are different to accommodate the transcooler. But I am guessing one just needs to put the hoses from the trans to the transcooler instead of the radiator and buy to hoses to go from the radiator to the transcooler.
I know on some earlier 3rd gen trucks there was one Motorcraft radiator part # that fit both the “super cooling” and “standard cooling” packages. Both had a separate aux trans cooler though of differing capacities. Still this retrofit on a 15’ is very possible. I’d bet the hoses line up and it fits. Ford keeps the parts dimensions and exterior attributes pretty similar because it saves them $$$.
Definitely get the transmission cooler, if you're seeing 225 on flat ground, you're in trouble. You can order the factory 7 row transmission cooler or the 10 row Dorman replacement unit. If check the scales, I have an ultralight aluminum frame fiberglass sided 26ft trailer that grosses 6200 pounds. Stick and tin trailers like yours are considerably heavier and that looks to be in the 30ft range. There should be a yellow sticker on the front of it that lists unloaded and gross weights, which do not include batteries or water in tanks (and sometimes not propane either). Either way, your transmission will not last long towing that rig without a transmission cooler.
JCP2018
Active Member
I'm also interested in this. Mine is an Enterprise rental level of basic (zero options). I got the same song and dance from every Ford dealer within 30 miles; liability laws prevent them from being definitive I guess.
Apparently Ford dealers are unable to comprehend how to do work past normal service work. I asked about upgrading my radiator and adding trans cooler and they got confused to as all the parts they had to order off the parts diagram. Must not be an option for them to just add a "tow package". I was almost belittled for not buying one with a max tow package. I told them why spend 25k more for something they had on the lot when I got on an 18 instead of a 17 that needs 1k worth of parts! Anyway, etrailer and you tube have plenty of videos on how to do. I was fortunate and when I finally got under the hood and looked, i have the trans cooler with the max payload package. I had them check the radiator when they tried to install the factory brake controller and couldn't and found out it also has the larger radiator. With that said my normal tow on flat ground is around 208 and 217-23 up small mountains and heavy stop and go traffic, while my engine temp stays normal. My camper is pretty equivalnt to your with the 6400 dry and 7600 max. I pack a lot of crap in there and usually carry water so probably near max. Good Luck your on the right path.
Flexpedition
Full Access Members
What is this max payload package?
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