Kit Masters Part Number:

99591

99591

Convert to 2 Speed

    ApplicationEngine
    KenworthISX 11.9L
    PeterbiltISX 11.9L

    OEM Part #(s)

    79A9591,
    98A9591,
    99A9591

    Rebuild Kit

    Use Kit: 14-50014-500

    Warranty

    2 year/200,000 mile

    1918
    Convert to 2 Speed