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Discussion Starter #1
Since I recommended carrying a spare serpentine belt when you off road to prevent having a problem getting back home without one, I did some searching and thought I would post these details under maintenance. You can always find this information by searching on the Keyword "Serpentine Belts".

I found these at Rockauto.com. You can use whatever vendor you want but these are the correct parts numbers listed. At least for a 2007.

For the 4.7 both regular and flex fuel:

Serpentine belts
Dayco part # 5060865 $20.79
Gates part # K060868 $26.89
A/C Delco # 6K868 $32.79

Tensioner pulley
Dayco part # 89254FN $45.79
Gates part # 38167 $42.89
A/C Delco # 38167 $51.79

Idler pulley
Gates part # 38001 $16.82
A/C Delco # 38001 $20.79

5.7 Hemi has a different belt and pulleys

Serpentine Belt 13/16 inch X 82 1/2 inch

Dayco part # K060820 $22.79
Gates part # 5060820 $24.89
A/C Delco # 6K820 $27.79

Tensioner pulley
Dayco part # 89377 $39.79
Gates part # 38323 $41.79
A/C Delco # 38323 $47.79

Idler pulley
Dayco part # 89133 $21.79
Gates part # 38018 $8.73
A/C Delco # 38018 $10.50

Gates and A/C Delco seem to share parts numbers.

I am only posting this information to give you the data that I looked up. Make sure that you get the correct belt.
 

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If one of these broke on the trail, how hard - and what tools - would we need to fix it?
 

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Discussion Starter #3 (Edited)
If it is like my Mustang serpentine belt you just use a lever to put tension on the tensioner pulley and slip the belt off remembering all the pulleys and directions that it takes. Putting on a new one would be the reverse. The only tool that you should need would be a bar of some kind, (like a lug wrench from your jack. At the worst you might have to use a wrench to remove the tensioner pulley. It should be easy. Maybe Jon (a49er) could look up the procedure in his "Grand Poobah set of service manuals and let us know.

I change my serpentine belt at the race on the Mustang in about 10 seconds. I use a short belt to bypass the power steering and other pulleys for a little more horsepower for drag racing. It is also less sensitive to steer at high speed at the end of the track.
 

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Discussion Starter #6
The Belt is part of the expensive 30K service. Just remember to ask the service department to save the old one for your emergency kit.
 
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