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Old 10-30-2014, 01:43 AM
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Trailer Tow Group IV Package

I purchased a 2014 5.7L V-8 Limited with the factory installed group IV tow package. Sounds good. One of the items listed as being included with the towing package is heavy duty engine cooling. Could anyone tell me what that is? Does this tow package include a transmission fluid cooler, larger radiator, or engine oil cooling unit? Thank you!

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Old 10-30-2014, 09:46 PM
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Re: Trailer Tow Group IV Package

If you look in the owner's manual, I believe it shows larger cooling capacity for the coolant fill.
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Old 10-30-2014, 10:52 PM
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Re: Trailer Tow Group IV Package

From Jeep Grand Cherokee WK2 - 2014 Grand Cherokee pricing and options, the components and cost of the trailer tow group option for the 2014 GC Limited:

M. TRAILER TOW GROUP IV (AHX) included with AWY (MSRP $795 / INV. $ 708) / with AWL: (MSRP $645 / INV. $ 574)
  • 220 Amp Alternator (BAJ)
  • 7 and 4 Pin Wiring Harness (XF2)
  • Class IV Receiver Hitch (XFH)
  • Delete Rear Tow Hook (XC8)
  • Full Size Spare Tire (TBB)
  • Heavy Duty Engine Cooling (NMC)
  • Rear Load Leveling Suspension (SES)
  • Steel Spare Wheel (WLB)
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Old 10-31-2014, 08:02 AM
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Trailer Tow Group IV Package

The radiator fan and cooling strategy are also different. Standard cooling has a simple two-speed fan...the HD cooling option has a higher-capacity fan that has variable speed controlled via PWM.
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