Thread: ISO 3800 sc idler pulley bolt

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  1. #1 ISO 3800 sc idler pulley bolt 
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    My idler pulley (3" grooved pulley) for the supercharger belt failed. I got a new pulley but it didn't come with mounting hardware and the bushing on the bolt on mine broke. I cant locate a new one. Does anyone have one they want to sell?
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  2. #2 Re: ISO 3800 sc idler pulley bolt 
    GTP Level Member wowitsfast's Avatar
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    I do believe that all the GM idler bolts are the same and are 15mm head.

    I would go to the pick n pull and grab a few of what you need out of some of the many many 3.8's they have in the yard.

    Rock Auto and even Amazon should net what you need.

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