International Forum

Ownership, maintenance and mechanical issues forum for all Navistar International trucks, including Lonestar, Prostar, Transtar and 9000.

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  1. Tom Hayes

    1974 International 500 is it worth saving

    Tom Hayes, Oct 21, 2025
    Replies:
    6
    Views:
    1,149
    '88K100
    Oct 26, 2025
  2. Arctic_fox

    Lonestar foglights?

    Arctic_fox, Oct 8, 2025
    Replies:
    0
    Views:
    613
    Arctic_fox
    Oct 8, 2025
  3. alfio

    Detroit 60 fan clutch setup

    alfio, Oct 7, 2025
    Replies:
    2
    Views:
    834
    Heavyd
    Oct 8, 2025
  4. SrFarm

    Fan clutch options for 4300 International?

    SrFarm, Oct 4, 2025
    Replies:
    5
    Views:
    1,197
    BillMot
    Oct 8, 2025
  5. 1Logger1

    Transmission temp gauge

    1Logger1, Oct 4, 2025
    Replies:
    8
    Views:
    1,226
    Heavyd
    Oct 6, 2025
  6. dartsway

    '99 9400 n14 getting hot quickly

    dartsway, Jun 28, 2014
    Replies:
    7
    Views:
    3,106
    Chalala
    Sep 29, 2025
  7. Warslobo

    2007 International pro star Suspension dump switch flashing

    Warslobo, Aug 19, 2022
    Replies:
    3
    Views:
    3,825
    de la cruz
    Sep 25, 2025
  8. ChargeLLB

    New job, new truck problems.

    ChargeLLB, Sep 18, 2025
    Replies:
    7
    Views:
    1,129
    ChargeLLB
    Sep 21, 2025
  9. SrFarm

    4300 Int'l j1939 communications?

    SrFarm, Sep 14, 2025
    Replies:
    6
    Views:
    1,025
    SrFarm
    Sep 17, 2025
  10. moroza

    How to improve a 4700's horrible ride?

    moroza, Sep 17, 2025
    Replies:
    0
    Views:
    496
    moroza
    Sep 17, 2025
  11. kev2809

    Mystery oil leak N14 Cummins

    kev2809, Aug 12, 2025
    Replies:
    9
    Views:
    1,559
    JB7
    Sep 13, 2025
  12. me myself and I

    Door won't open on LT

    me myself and I, Sep 11, 2025
    Replies:
    5
    Views:
    1,309
    SmallPackage
    Sep 12, 2025
  13. kvshweta

    What do you think about the Prostar Steering wheel switches?

    kvshweta, Sep 30, 2013 ... 2 3 4
    Replies:
    33
    Views:
    15,521
    Arctic_fox
    Sep 11, 2025
  14. jasonpanro

    2009 international prostar with isx cummins fault codes

    jasonpanro, Sep 1, 2013 ... 4 5 6
    Replies:
    56
    Views:
    90,091
    Prince bhangu
    Aug 23, 2025
  15. ChevyCam

    International 9400 to 9900 hood swap.

    ChevyCam, Mar 12, 2019 ... 2 3
    Replies:
    27
    Views:
    16,867
    Roy Ande
    Aug 22, 2025
  16. kubasj05

    Tapping into oil pressure system

    kubasj05, Sep 15, 2019 ... 2
    Replies:
    10
    Views:
    2,687
    Heavyd
    Aug 13, 2025
  17. tim4280

    2018 LT Automatic - ABS/Trans Fault Codes

    tim4280, May 20, 2019 ... 2
    Replies:
    13
    Views:
    39,744
    Arnaldit
    Aug 9, 2025
  18. mtharmar

    international prostar max force 13

    mtharmar, Aug 4, 2018 ... 2 3
    Replies:
    25
    Views:
    12,337
    maneri1891
    Aug 7, 2025
  19. Blagoje

    International LT Build Specs

    Blagoje, May 22, 2024
    Replies:
    6
    Views:
    2,264
    Heavyd
    Aug 2, 2025
  20. tarmadilo

    2025 LT cruise control weirdness

    tarmadilo, Aug 1, 2025
    Replies:
    1
    Views:
    724
    Arctic_fox
    Aug 2, 2025
Showing threads 21 to 40 of 2,022

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