Cummins X15 Heater Core Fitting

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Midwest Trucker, Jan 13, 2020.

Page 2 of 3
  1. Midwest Trucker

    Midwest Trucker Road Train Member

    Joined:
    Aug 31, 2018
    Messages:
    5,898
    Thanks Received:
    21,300
    0
    That’s really good to know. I was pretty bummed at Cummins about this but it being Kenworth makes a lot more sense!
     
    Midwest Trucker, Jan 13, 2020
    #11
  2. Goodysnap

    Goodysnap Road Train Member

    Joined:
    Jul 12, 2017
    Messages:
    3,718
    Thanks Received:
    9,033
    0
    Yes. You will have to drain.

    5/8" - V38-1018

    3/4"- V38-1089

    90* to 3/8"- D1030-3758

    These are all brass and come with the o-ring.
     
    Goodysnap, Jan 14, 2020
    #12
    Evil_E, Northern70, Flint1 and 2 others Thank this.
  3. OpsMgr

    OpsMgr Bobtail Member

    Joined:
    Mar 10, 2017
    Messages:
    3
    Thanks Received:
    1
    0
    Are those kw part numbers?
     
    OpsMgr, Sep 5, 2020
    #13
    Northern70 Thanks this.
  4. Goodysnap

    Goodysnap Road Train Member

    Joined:
    Jul 12, 2017
    Messages:
    3,718
    Thanks Received:
    9,033
    0
    Paccar/Dynacraft part. Should be same part# Pete or KW
     
    Goodysnap, Sep 5, 2020
    #14
    Northern70, Flint1, D.Tibbitt and 2 others Thank this.
  5. D.Tibbitt

    D.Tibbitt Road Train Member

    Joined:
    Apr 26, 2013
    Messages:
    21,782
    Thanks Received:
    148,879
    Location:
    Gettin' down westbound
    0
    Mine has been leaking for a good 6 months . Couldnt for the life of me find a part number for it . Thank you. Will be replacing now
     
    D.Tibbitt, Sep 5, 2020
    #15
    Goodysnap Thanks this.
  6. Goodysnap

    Goodysnap Road Train Member

    Joined:
    Jul 12, 2017
    Messages:
    3,718
    Thanks Received:
    9,033
    0
    Yes, do that.

    They are known to snap off at the threads with no notice.
     
    Goodysnap, Sep 5, 2020
    #16
    Northern70, Flint1, spsauerland and 2 others Thank this.
  7. AModelCat

    AModelCat Road Train Member

    Joined:
    Jul 7, 2015
    Messages:
    29,221
    Thanks Received:
    159,289
    Location:
    Canuckistan
    0
    Plastic is for tupperware, not trucks.
     
    AModelCat, Sep 5, 2020
    #17
    Roberts450, Flint1, loudtom and 2 others Thank this.
  8. spsauerland

    spsauerland Road Train Member

    Joined:
    May 31, 2010
    Messages:
    4,296
    Thanks Received:
    10,887
    Location:
    West Harrison, In
    0
    Most of them I replaced break as soon as you put a wrench on them. Do them all.
     
    spsauerland, Sep 5, 2020
    #18
    Flint1, D.Tibbitt and AModelCat Thank this.
  9. Woellerindustries

    Woellerindustries Bobtail Member

    Joined:
    Nov 11, 2021
    Messages:
    1
    Thanks Received:
    0
    0

    Which size would I need for a 2019 KW T680 Cummings X15

    the top one is obviously leaking.
     

    Attached Files:

    Woellerindustries, Dec 22, 2024
    #19
  10. Goodysnap

    Goodysnap Road Train Member

    Joined:
    Jul 12, 2017
    Messages:
    3,718
    Thanks Received:
    9,033
    0
    Sure looks like the top one is 5/8” to me. But measure to hose ID or the aluminum tube OD to be certain. Get some extra hose to take up the length of the aluminum tube plus the other piece of hose.
     
    Goodysnap, Dec 22, 2024
    #20
    Oxbow and Woellerindustries Thank this.
Page 2 of 3