Add 850w heavy duty cooling fan to 3.6L Gladiator that didn't come with it. ( no Tow Package or Max Tow )

[ShadowsPapa]

I just plugged in to KBB a 22 Mojave with 19K miles with and without the tow package and it only list $200 premium difference.

I do not think the juice is worth the squeeze trying to get the VIN updated with it even if possible.

Beat me to it. I was going to suggest that paying the dealer roughly $100 wouldn't make it worth a thing.

(I also question if they'd do it at all because there may be other differences unseen - such as different spring numbers - not all springs are the same, and the tow package springs could well be different and as a buyer of a used vehicle, I'd be really PO'd to later find it was owner added parts represented as a factory tow package)

Just curious, what would be the reason to do this?

Often times people get things added to their VIN because of programming and retaining that change during updates. But there's nothing like that for the tow package, it's just a physical mod, so having that added to the VIN won't really do anything for you.

I'd say don't waste your time trying. Is there something I'm missing?

Something I have also wondered - when the dealer did my 2020 update after I added the passive entry, they made a note in the system that it was dealer installed........
Is that a CYA thing?
They did it for me I believe in part because of the rivalry between themselves and another dealer in the area after I told them the "sales guy at the other place didn't get the box checked after my wife and both said we wanted that option as we were ordering". After I said that, they somehow seemed "different" when talking about it. I know there's a rivalry between their shops because the one is swamped with "work the other shop messed up" (their words!)

Anyway, when talking a truck like these with the level of Mojave, I figured - it can't be over a couple hundred bucks difference and the cost of the parts and the effort blows that away, why pay more for no return?

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[ecidiego]

.

 

[Jobofly]

Yea probably not worth it. Thanks guys. I will let you know how the install goes.

 

[Hootbro]

Mojave is always 6,000 tho, with or without tow package. At least the Auto...

Interesting, I would not have guess that. Wonder why?

 

[ShadowsPapa]

Mojave is always 6,000 tho, with or without tow package. At least the Auto...

Yes, Rubicon and Mojave are the only two that way.

As far as why - here we go again!
Towing is more than the list of parts, it's the result of a list of parts applied to a specific vehicle in a specific way - frame, hood (heat rejection) gear ratios, axle widths, vehicle weight, tires (remember, the rating is with stock and height anything else goes down) bumpers (doesn't Rubicon have steel bumper regardless?) and more.
Heat rejection was one of the biggest factors in engineering in the original tow numbers so maybe they've found something different with the Mojave (and Rubicon).
Maybe Mojave is lower than Rubicon due to increased height, maybe it's tires, we're all guessing, speculating.

But suffice it to say - all other versions of Gladiator vary with tow package or no tow package, Mojave and Rubicon have the same tow rating in any case - however, don't try to tow that with a ball on the bumper.
I'd bet the book addresses that if anyone even bothers any more.

 

[Sandevino]

Yes, Rubicon and Mojave are the only two that way.

As far as why - here we go again!
Towing is more than the list of parts, it's the result of a list of parts applied to a specific vehicle in a specific way - frame, hood (heat rejection) gear ratios, axle widths, vehicle weight, tires (remember, the rating is with stock and height anything else goes down) bumpers (doesn't Rubicon have steel bumper regardless?) and more.
Heat rejection was one of the biggest factors in engineering in the original tow numbers so maybe they've found something different with the Mojave (and Rubicon).
Maybe Mojave is lower than Rubicon due to increased height, maybe it's tires, we're all guessing, speculating.

But suffice it to say - all other versions of Gladiator vary with tow package or no tow package, Mojave and Rubicon have the same tow rating in any case - however, don't try to tow that with a ball on the bumper.
I'd bet the book addresses that if anyone even bothers any more.

I bought the steel bumper... I can install a ball and tow with it, no?

/sarcasm

 

[ShadowsPapa]

I bought the steel bumper... I can install a ball and tow with it, no?

/sarcasm

Eh, I should have said REAR bumper - but forgot a word.
I suppose you could tow with a ball on the front bumper since these have a ridiculously high reverse with the MT. Get yourself some good mirrors.

 

[Jobofly]

Update: just installed the 850 watt fan. It’s a very easy upgrade to do. It’s a lot beefier than the 600 watt. Here are some pictures of it side by side.

 

[ecidiego]

That plastic covering the old fan motor must be new I didn't have that

 

[willys 41]

I installed the 940 watt fan along with the 240 amp alternator and Z-fuse
What really keeps my jeep running about 25 to 30 degrees cooler is the RPM EXTREME FAN CONTROLLER
I no longer see coolant and oil temps as high as 230 to 240 degrees
The highest coolant temps I have see pulling a long steep grade on hw80 to Lake Tahoe was 212
On the Rubicon trail never went over 199
These temps was before I upgraded the fan and alternator. Just running the RPM EXTREME FAN CONTROLLER

http://www.rpmextreme.com/Product/311/Jeep-JL-PWM-FAN-CONTROLLER.aspx

 

[ShadowsPapa]

Just don't run too cold. You want to see temps over 200. You never get the combustion gases and moisture out of the oil keeping it too cool. And you wear engines out faster below 200 degrees.

Higher temperatures also promote the flow of oil to the compression ring where most wear (and also power losses) occur.

(I have some science papers on this stuff)
It has been shown that minimum friction (ring to cylinder liner/wall) occurs for liner temperatures in the range 140–150 °C

 

[willys 41]

You can run your jeep up to 240 degrees and have it go into limp mode
I will pass

 

[LouisvEarlleJT]

you’ll get a lot hotter than 240 once that module burns up your fan motor due to running it faster than the components were designed to run.

 

[ShadowsPapa]

you’ll get a lot hotter than 240 once that module burns up your fan motor due to running it faster than the components were designed to run.

Fact is - these just don't over-heat unless there's a problem. They just don't.
220 is fine for coolant. Oil that stays too cool, or doesn't get warm enough for LONG enough ends up with pitted and etched bearings. You obviously don't want it to peak too high, but unless you get it up to temp - and then keep it there for a period of time, it's problems. It's not enough to let it hit 200 for example, for a few minutes then drop the temp. it's got to be up there for a period of time.
Again, these just don't have heat issue unless you have a problem.
I've in the past posted the thermostat specs for multiple stats - and although you may see a 190 or 195 rating, that's where they just begin to open - thousandths of an inch. they don't fully open until around 220. So that means the auto makers aren't concerned and want to keep the engine temperature up.

 

[willys 41]

Jon at RPM EXTREME Has been making these for years for JKs with out any problems
Do what you want
I like others prefer to keep a cool running jeep under all condition

NOT concerned
https://jalopnik.com/the-engineering-behind-the-jeep-gladiators-tow-rating-1833657453

First it was the 600 watt fan then the 850 watt now they have the 940 watt fan tying to keep the 3.6 cool

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