Z32 HICAS ECU part numbers

Discussion in 'Technical' started by ryzan, Jan 19, 2024.

  1. ryzan

    ryzan Moderator Staff Member

    I was recently asked to look up part numbers for the various HICAS controllers, I thought I'd post my findings here as I couldn't easily find anything else online with this info. I hope this can help someone else in the future.

    Keep in mind HICAS was limited only to factory twin turbo models through the entire production run so the below details only relate to these models.

    Model Year: 1989-07 - 1989-12
    Applicability: 2+0 & 2+2
    Part number: 28505-43P00
    Replacement: 28505-43P50

    Appears there was a different part number for very early builds, likely Nissan changed manufacturer or design on the original unit as they are listed as interchangable.

    Model Year: 1989-12 - 1993-09
    Applicability: 2+0 & 2+2
    Part number: 28505-43P50

    Then there was a part number change when Nissan went from hydraulic to electric HICAS.

    Model Year: 1993-09 - 1996-07
    Applicability: 2+0 & 2+2
    Part number: 28505-50P10

    Model Year: 1996-07-01 - 1997-01-01
    Applicability: 2+0 & 2+2
    Part number: 28505-50P15

    Interestingly, in 1997 the 2+2 got a new part number for the controller.

    Model Year: 1997-01-01 - 1998-10-01
    Applicability: 2+0
    Part number: 28505-50P15

    Applicability: 2+2
    Part number: 28505-49P10

    Then at the end of 1998 for the 2k spec model, they got unique part numbers for each wheelbase.

    Model Year: 1998-10 on
    Applicability: 2+0
    Part number: 28505-VP100

    Applicability: 2+2
    Part number: 28505-VP120
    geron likes this.

Share This Page