250 Cummins Jakes

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 64Peterbilt, Jun 4, 2018.

  1. DougA

    DougA Road Train Member

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    It's an 855,743's had external injection lines,easily recognizable difference. And yours is a small cam with the compression release. Makes for easier starting,with low battery,cold weather.
     
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  3. 64Peterbilt

    64Peterbilt Bobtail Member

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    this peterbilt has that nh 250 cummins in it.
    20180526_151955[31].jpg
     
  4. 64Peterbilt

    64Peterbilt Bobtail Member

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    Yes, thank you im aware that it is an 855 just curious what model of jakes would fir onto it if there is some.
     
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  5. slickWillie1980

    slickWillie1980 Medium Load Member

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    That'll be a nice truck once it's done
     
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  6. 64Peterbilt

    64Peterbilt Bobtail Member

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    thanks
     
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  7. kranky1

    kranky1 Road Train Member

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    You know i looked into it too. I’ve never seen one myself, but apparently from around ‘57 on there were 855 NH engines available. I may have seen them and just assumed them to be 743’s. That assumption thing again.
     
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  8. DougA

    DougA Road Train Member

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    Model 25A Jake,I believe the 25B will work also.
     
  9. 64Peterbilt

    64Peterbilt Bobtail Member

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    Jun 3, 2018
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    Yeah and i have seen a few of the 743 engines for sale before but i have not seen as many of them as i have the 855's.
     
  10. 64Peterbilt

    64Peterbilt Bobtail Member

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    Okay thank you, and what model jakes fit the NTC engines because there is a NTC 350 that one of my friends has that is a bad motor but has jakes on it. Just curious if i could get that engine for cheap if the jakes would swap over.
     
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  11. BoxCarKidd

    BoxCarKidd Road Train Member

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    Look up Tech? Brake. They are Jake knock offs and sell complete kits. I have installed some with no problems. Believe they list kits with CPLs they fit or Google it. Info is around.
    I believe the engines with PTD and top stop injectors used different engine brakes.
    N= 4 valve head. T= turbo charged. C= aftercooled.
    NTC 350's I recall had top stops but I also remember small cam ( PTD ) 400's.
     
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