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Unread 12-31-2013, 01:15 PM   #1
S197GT
Registered User
2005 WK 
 
Join Date: Oct 2011
Location: Indianapolis, Indiana
Posts: 58
Replacing tensioner and pulleys (4.7 V8)

So I did a search and there isn't a whole lot of info on part #s, brands, etc...

I can hear one of the pulleys making noise on the tensioner.

Am I right that the tensioner itself has two pulley on it? Both the tensioner and the idler?

I am thinking that I will just replace the whole assembly. Looks like just a 15mm bolt holding it on?

Lastly, any preference in part manufacturers? Go OEM off eBay or is a Gates, Goodyear, AC Delco off Amazon just fine?

And why are there two different part #s for the tensioner on Amazon?

Example:
Gates 38167 $44.38
Gates 39120 $52.30

AC Delco 38167 $48.92
AC Delco 39120 $46.98

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Unread 12-31-2013, 02:47 PM   #2
816jared
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2005 WK 
 
Join Date: May 2013
Location: Blue Springs, MO
Posts: 179
my guess would be one part # is for '05-'07 and the other part # is for '08+, there was a pretty significant refresh for the 4.7's in '08.

here's some reading:
http://www.allpar.com/mopar/47.html
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Unread 01-01-2014, 08:38 AM   #3
S197GT
Registered User
2005 WK 
 
Join Date: Oct 2011
Location: Indianapolis, Indiana
Posts: 58
rock auto and napa show the 39120 part as being for the 2005 4.7 and have great photos so that is what i am going with.

going with gates.
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