Perhaps this is already common knowledge, but someone showed me this over e-mail: the roller on the serpentine belt tensioner is identical to the idler roller. The bolt is a bit longer on the roller, but you could cut it down or re-use the old one with lock-tite.



Serpentine idler roller on left, full serpentine belt tensioner assembly on right.

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2005 KJ CRD - EURO TC, GDE ECO-FT, GDE TRANS, Lift Pump(<- hard to install, worth it) = 32+ MPG highway and a great ride
Product & Catalog Director @ IDParts.com (888) 444-7951 sales@idparts.com http://www.idparts.com

I don't know how "common" that knowledge is but I stored it in my parts listing sometime ago when Tigafila posted this factoid. To the extent I've seen chat about this tensioner failing it's been the "spring" part not the pulley and failure is apparently often related to an alternator clutch pulley failure which if not caught can stress the serp belt tensioner.

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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

Can generic NAPA 36101 or standard 6203 bearings also be used ?

I am going to say NO based on my experience with a gates 6101. It is too deep and might rub on the tensioner arm.

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05 CRD Sport Dark Kahki

RRO: Adventure Rack/Rails ** MOPAR: Skids/Renny Flares & 255/75r17 (32.1) BFG M/T on JK wheels ** ARB: Bumper/IPF lights/790/948/shocks ** GDE: TCM/Hot Tune ** ROCKLIZARD: Super Sliders/Komodo Bumper

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