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Serpentine Belt Question!


Old 04-04-2007, 09:25 PM
TMS Bill's Avatar
TMS Bill
TMS Bill is offline
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Location: Warren, NJ
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Default RE: Serpentine Belt Question!

I know the belt will not go around the a/c pully, I am looking for a way to make sure it is the inturnal bearing, just to make sure the dealer did not make a mistake, i don't want to replace something I don't have too,
If it's an internal bearing, one would think it should be silent when the A/C clutch isn't engaged.
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Old 04-04-2007, 10:14 PM
TPSDODGE is offline
Join Date: Jan 2005
Posts: 225
Default RE: Serpentine Belt Question!

motormite/doorman makes a kit you take off the compressor and bolt it on and use the stock belt
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Old 04-06-2007, 11:41 AM
98RamSport360 is offline
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Posts: 49
Default RE: Serpentine Belt Question!

Well the 5070900 Belt worked for me just fine, I have been running it for a few days now. I am going to tak the Clutch Pully off next to see what's what. Thanks for all your help.

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Old 04-06-2007, 08:42 PM
HankL is offline
Join Date: Aug 2005
Posts: 3,313
Default RE: Serpentine Belt Question!

some old posts with belt info that might be of use to someone:
> Found the right bypass belt. Its part no. 872K6 made by Kelly
> Springfield, $15 at Autozone. This will also cross to Napa I'm
> told but they will be a little more expensive. This belt will fit any
> 5.2/5.9 WITH THE ASP CRANKPULLEY, sorry don't know about
> the V6. Having an electric fan helps speed up the change over, but
> shouldn't take to much longer with the stock fan. After 2 weeks it
> looks like .1-.2 extra MPG. Of course it may be just the way I drive. ;o)
> GS -
> '98 5.2L 5spd
> 3.92SG, MPI,

part numbers, and prices for 1993 Dakota V6:

-Kelly-Springfield Serpentine Belt; PN#884K7; $22.99
-Upper Radiator Hose; PN#974; $6.99
-Lower Radiator Hose; PN#919; $7.99
-Water Bypass Hose; PN#4374; $2.99
-Robert Shaw Generation II Thermostat; PN#GT755-195; $8.99
-Felpro Water Outlet Gasket; PN#35064; $.89
Daniel D

Are you sure you got the right belt?
The part number for the belt with A/C
is 975K7.
If ya don't have AC then it's 884K7.
I am thinking of bypassing my A/C when i run at the track.
Someone told me that the 884k7 doesn't work if your
bypassing the A/C. I work at Auto Zone.

Gates Part No. K070976 Serpentine Belt
{With AC}

I replaced my factory Ram serpentine belt with a $28 Goodyear
'Gatorback'4070975 Poly-V Belt (97.5 inches long).
I like this belt and think it runs quieter. The Gatorback design has notches
cut in the serpentine belt ribs.

But this was a 2nd attempt. I first tried a Dayco 'Dynaflex Heavy Duty
Automotive V-Ribbed PN 973K7' serpentine belt. This Dayco belt would not go on
despite all attempts at muscling it into place. It was about 2 inches too
short - despite the '97' in the part number.

With 50k on the stock serpentine belt, thought it was time to change it so I
did some research and found out the slight squealing I get each morning is
from the ribs on the belt as they make tight bends around a couple of pullies.
The notched belts will take care of the noise but this Goodyear belt is
supposed to be one of the best. Part number 4070970 for the 5.2L by the way,
$26 from Auto Zone.

Gatorback swallows up irritating chirps, squeaks and squeals due to its
Helicog(TM) tooth design. Unlike the straight cogs on standard v-ribbed belts,
the diagonal Helicog(TM) teeth on Gatorback actually cancel the noise of
pulley contact from one offset cog to another. The result is a reduction in
operating noise by as much as 15 decibels.

Gator-Strong Construction

No belt is built to last like Gatorback. The backing of the belt is composed
of a tough coated fabric that provides twice the abrasion resistance of
standard belts. It's oil and heat resistant, too.

Scroll down to the diagram below, and you'll see that Gatorback's hide-tough
construction stands up to the harshest engine environments.

Gator-Tough Durability

The belt's Helicog(TM) tooth design gives Gatorback added flexibility, which
translates into a cooler running belt. And a cooler belt lasts longer --
nearly three times longer than competitive cogged v-ribbed belts. With that
kind of durability, Gatorback eats up the competition.


1. Strong, Stretch-Resistant Tension Member.

Specially treated to maintain tension and resist stretch on both locked center
drives and spring tension systems.

2. Tough Synthetic Rubber Ribs.

Fiber-reinforced Wingprenereg. rubber helical cogged ribs offer maximum cord
support and wear resistance for unsurpassed performance in high horsepower

3. Oil And Abrasion- Resistant Backing.

The backing on every Goodyear Gatorback Poly-V belt is a tough coated fabric
material. It's impregnated with Wingprene rubber for heat and oil
resistance to provide the high coefficient of friction needed to drive flat

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Old 07-18-2007, 10:35 AM
98RamSport360 is offline
Join Date: Apr 2007
Posts: 49
Default RE: Serpentine Belt Question!

I want to thank everyone with all there help on this thread. The bypass belt worked great. I was able to get a quality used A/C Compressor from for $97.99 shipped. I installed it and had a friend recharge the system for me. It has been running from July 1st like a champ.

Thank again
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Old 07-31-2008, 11:43 AM
prstlk is offline
Registered User
Join Date: Jul 2008
Posts: 4
Default RE: Serpentine Belt Question!

01 2500 diesel changed water pump and wanted to do belt at the same time. Double checked new belt, same sizeas old. I cannot get the new belt on!? The idle pulley just doesn't let me pull it tight enough to get the pin on the pully into the bracket. I even tried a longer lever and broke the end off of the socket wrench. I'm sure it's something simple but I'm missing it. Yes I double checked routing and the belt is seated in all pulleys.
Thanks for the help!
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Old 03-15-2010, 03:47 PM
bonesbmx is offline
Join Date: Oct 2008
Location: ont canada
Posts: 34
Default v6 bypass belt #

i have a 1997 v6 and im looking to bypass a/c. does anyone know a part #? i live in canada so i dont have an autozone. just partsouce and napa.
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Old 04-25-2010, 12:47 PM
steve_T is offline
Join Date: Jan 2010
Posts: 78

i dunno if it has already been said but the belt has to be a 7 rib 90" autozone pt number 900k7
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Old 12-28-2010, 04:59 PM
ptlcb1 is offline
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Join Date: Dec 2010
Posts: 5

At the beginning of this thread, Glideman recommended a belt size for JarheadX, that was for his 5.9L. I am wanting to by-pass my A/C as well with a shorter belt. I have an '01 1500 with the 5.2L 318. Would Glide's recommendation fit mine as well or would there be a different size I would need for my 5.2L?
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Old 12-28-2010, 05:36 PM
Pacmanloads's Avatar
Pacmanloads is offline
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Location: Moncton , New Brunswick
Posts: 607

NAPA# 25070901 Is a perfect fit once the Ac compressor has been removed . I tried the belt from the dealer first for a truck without AC and it DOES NOT fit . The Napa belt fits perfectly.
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