MACK GRANITE ISL9 engine

Discussion in 'Mack Forum' started by goodfys, Jul 9, 2022.

  1. goodfys

    goodfys Bobtail Member

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    Mar 21, 2015
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    Hello all
    I'm in the process of buying a 2015 Granite dump truck with a Cummings ISL9 engine and I don't know it this is a Medium Duty or Heavy Duty engine. I'll will be hauling 70k lbs on a daily basis. Can someone help me with this since there aren't a lot of information about it online. I feel this engine will be too small for what I will be doing. Thanks to all
     
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  3. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
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    It'll do the job but you won't win any races with it. Probably best off finding something a little bigger than a 9L.
     
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  4. Arctic_fox

    Arctic_fox Road Train Member

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    Sep 16, 2016
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    Yea.....thats pretty underpowered. I have a MX13 and its a 12.9 liter engine and is sluggish as hell pulling that kinda weight. Best bet is to go with a bigger engine if posible.
     
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