Rebuild straight truck with 400K miles or cut my losses?

Discussion in 'Ask An Owner Operator' started by MsBoxT2013, Jul 1, 2020.

  1. AModelCat

    AModelCat Road Train Member

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    Far as I know those Paccar engines (the PX series) are just Cummins with Paccar logos on them.
     
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  3. MsBoxT2013

    MsBoxT2013 Bobtail Member

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    Update: I spoke with Cummins and they told me I'd be looking at at least $20K for a basic rebuild to $30K if they end up doing a pro overhaul with new fuel injectors, etc. They could do a recon engine, and that would be $20K to do the swing with 2 yrs warranty for 200K miles.

    The guy is sending me a full quote. The truck is 10 hrs away from me and I called the local Cummins. Should I go with the recon engine option, or should I have them do a full diagnosis of the current motor?
     
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  4. SmallPackage

    SmallPackage Road Train Member

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    Can’t say about nowadays but Cummins had always had a good recon program in the past. Old hands have said many times that they thought the parts and machine work Cummins used on the recon stuff was better than what they built the engines with new. They tended to last longer and run better.
    It is a lower cost option for sure and everything is already done. You don’t have to wait an extra week or two for labor or parts to be done for rebuild. No matter what part you are looking for they always seem to never have anything your engine needs in stock and it’s always at least a day away. Lol!
     
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  5. MsBoxT2013

    MsBoxT2013 Bobtail Member

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  6. MsBoxT2013

    MsBoxT2013 Bobtail Member

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    Quote came back at $28K for the part Cummins would need and $6500 for the labor.

    I spoke with another guy in the shop that had the Paccar and he told me his coworker was wrong because that engine would not be compatible with the cummins in my truck. He told me they can do an inframe rebuild for $10K, but they prefer to do a swap because there's less chance of them missing something. He's supposed to get back to me Monday morning to confirm if they have a rebuild Cummins that is compatible. But right now I'm leaning towards the inframe rebuild.
     
  7. AModelCat

    AModelCat Road Train Member

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  8. MsBoxT2013

    MsBoxT2013 Bobtail Member

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    Just got a quote to do an infram rebuild for the Cummins. ISC kit is $1230 and New head assembly is $2274. They guys are steep on labor, but they are the only ones I've found so far willing to rebuild the engine instead of doing a swap. Total cost would be $11K. It's not $6K, but am thinking of going with this option.

    Are your trucks straight or semi? I have someone telling me not to bother with the rebuild because 400K miles in a 2013 box truck is equivalent to 1mil on a semi.
     
  9. jeffman164

    jeffman164 Medium Load Member

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    I have had over a million miles on two different straight trucks. Ran fine. Always a gamble though.
     
  10. Colt6920

    Colt6920 Light Load Member

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    It really all depends on how you run it.
    Most straight trucks end up doing local/ city delivery work. They might not rack up a bunch of miles but they still get beat to death with lots of stop and go traffic, ####ty roads, and astronomical idle time.
    For those trucks they are absolutely done at 3-400k. Everything is shot, things just absolutely ####ed and it’s probably pushing 15-20 years old as well.

    But if you are hotshotting or running it regionally or at least somewhat over the road then you have a better chance of making it 500k-1 million. But still, medium duty motors are really only rated to 3-500k B50 life, which is the mileage at which half the fleet will on average have required major engine work or a rebuild. The ISC is rated to 350k. For comparison, the ISX is rated to 850k.
     
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