Hey, wanted to let you know there is a much cheaper alternative for the serpent belt idler and tensioner pulleys, Napa #36101 perfect fit, just lose the big washer. $15 apiece!!!!!

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'05 CRD Limited: 174k mi Euro Torque Converter, EHM, ORM, Racor fuel filter, Original Rocker Arms, Amsoil everywhere
'98 Dodge Ram 2500 Cummins 24 valve extended cab short bed
'01 Jinma 4wd diesel tractor

Good find. Someone else posted here that 36141 was a match, but said they were $30.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
RL super sliders, Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

Both those prices are about $3 below the online price but probably in line with an in store mechanic discount price. Visually the 36141 looks like a better equivalent mainly because it has a groove around the middle that at least looks like that on my OEM pulleys. But as nearly as I can tell, without taking stuff off my vehicle, the width of a Gates serp belt is 20.5 mm and the pulley diameter is 69.85mm so the 36141 probably wouldn't work as it's a shade too narrow (on the OEM pulley there is about 1.5mm on both sides of the belt on the bearing surface) and definitely too big a diameter.

Other than the groove, probably meaningless, the 36101 looks just right. Nice find.

Makes me wonder about NAPA timing belt idler pulley options. Anyone got the dimensions?

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

Good find.

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

I did this last night and just wanted to confirm that the Tensioner pulley unbolts and the Napa pulley 36101 bolts right up. Squeaky bearing is now fixed! $23.00 in stock at Napa. I was able to change it without removing the fan, but It would probably have been easier to remove the fan.

Jason

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2005 Black Limited CRD, GDE ECO tune otherwise stock. 165K and hoping for 500K

Just an FYI to anyone replacing just the pulley on the tensioner, Make sure you inspect the tensioner very closely to make sure it is still good. One month after being excited about the inexpensive fix, My tensioner gave up totally, causing the belt to shred and left my wife stranded. Upon inspection, I could see where the belt had been running on the tensioner unevenly, and the tensioner had lots of play and hadobviously failed. Don't know if it was like this when I changed the pulley, but I know I didn't inspect it. With the belt off it rests against the Power Steering pulley and makes it seem there is no play. I had to work the tensioner back and forth while bolted to the block to notice the play.

Jason

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2005 Black Limited CRD, GDE ECO tune otherwise stock. 165K and hoping for 500K

Thanks for the heads up Jason.

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

FYI those NAPA pulleys have Chinese bearings which may or may not be an issue. More to the point the pulleys are steel and the bearing is a press fit which makes me wonder, I've not changed my serp belt so I don't know, if the OEM pulleys are the same in which case the bearing should be replacable with access to a bearing press.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs