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Forged Pistons 2.0L 16v 4U-GSE FA20 Subaru Toyota

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Forged pistons FA20/4U-GSE O86-87, Volume ratio 9.5-13.5:1, Pin 22 mm, CH 32.66 mm. Table, FA20D/4U-GSE compatibilities, BRZ/GT86/FR-S vehicles and OEM Pistons references.

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  • Specifications of the forged pistons offered by NSB Concept for Toyota 4U-GSE / Subaru FA20D (GT86 / 86 / BRZ / FR-S) :

    ReferenceOEM Bore
    86,00 mm
    OEM CR 12,5 :1OEM Pin
    22 mm
    Height OEM Pin
    32,66 mm
    RangeCoatingAluminiumForgingDomeWeightRings
    JE-31511486.09.5:122.032.75JE FSRNC2618FSR-16.4325.0NC
    P4-TFRS-86-CR9.5-486.09.5:122.032.5SupertechCrown + Skirt4032NC-15.5339.0W8600XX
    WK728M8686.09.5:122.032.66WisecoSkirt2618NC-16.00NCNC
    K9502DA86.09.5:122.032.8WossnerNCNCRound-14.79NC860XPY
    JE-31511786.010.5:122.032.75JE FSRNC2618FSR-10.2312.0NC
    JE-36789886.010.5:122.032.75JE Ultra SeriesCrown + Skirt2618FSR-10.2322.0NC
    WK727M8686.010.5:122.032.66WisecoSkirt2618NC-9.50NCNC
    K9485DA86.010.5:122.032.8WossnerNCNCNC-8.6NC860XPY
    JE-35915286.012.5:122.032.75JE FSRNC2618FSR-1.0317.0NC
    P4-TFRS-86-CR12.5-486.012.5:122.032.5SupertechCrown + Skirt4032NC-0.2343.0W8600XX
    JE-31512086.013.5:122.032.75JE FSRNC2618FSR2.5315.0NC
    632601C-486.110:1NC32.64ManleySkirt4032NC-11,4330.0NC
    632601CE-486.110:1NC32.64Manley HDSkirt2618NC-11,4330.0NC
    JE-35915086.259.5:122.032.75JE FSRNC2618FSR-16.7319.0NC
    WK728M862586.259.5:122.032.66WisecoSkirt2618NC-16.00NCNC
    632602C-486.2510:1NC32.64ManleySkirt4032NC-11,4331.0NC
    632602CE-486.2510:1NC32.64Manley HDSkirt2618NC-11,4331.0NC
    JE-35915186.2510.5:122.032.75JE FSRNC2618FSR-10.5318.0NC
    JE-36789986.2510.5:122.032.75JE Ultra SeriesCrown + Skirt2618FSR-10.5323.0NC
    WK727M862586.2510.5:122.032.66WisecoSkirt2618NC-9.50NCNC
    K9485D02586.2510.5:122.032.8WossnerNCNCNC-8.6NC862XPY
    JE-35915386.2512.5:122.032.75JE FSRNC2618FSR-1.3321.0NC
    JE-35915686.2513.5:122.032.75JE FSRNC2618FSR2.2317.0NC
    JE-31511586.59.5:122.032.75JE FSRNC2618FSR-17.0321.0NC
    WK728M865086.59.5:122.032.66WisecoSkirt2618NC-16.00NCNC
    K9502D05086.59.5:122.032.8WossnerNCNCRound-14.79NC865XPY
    632605C-486.510:1NC32.64ManleySkirt4032NC-11,4334.0NC
    632605CE-486.510:1NC32.64Manley HDSkirt2618NC-11,4334.0NC
    JE-31511886.510.5:122.032.75JE FSRNC2618FSR-10.7318.0NC
    JE-36790086.510.5:122.032.75JE Ultra SeriesCrown + Skirt2618FSR-10.7324.0NC
    WK727M865086.510.5:122.032.66WisecoSkirt2618NC-9.50NCNC
    JE-35915486.512.5:122.032.75JE FSRNC2618FSR-1.5322.0NC
    P4-TFRS-86.5-CR12.5-486.512.5:122.032.5SupertechCrown + SkirtNCNC-0.2NCW8650XX
    JE-31512186.513.5:122.032.75JE FSRNC2618FSR2.0317.0NC
    JE-31511687.09.5:122.032.75JE FSRNC2618FSR-17.7322.0NC
    WK728M8787.09.5:122.032.66WisecoSkirt2618NC-16.00NCNC
    JE-31511987.010.5:122.032.75JE FSRNC2618FSR-11.3321.0NC
    JE-36790187.010.5:122.032.75JE Ultra SeriesCrown + Skirt2618FSR-11.3327.0NC
    WK727M8787.010.5:122.032.66WisecoSkirt2618NC-9.50NCNC
    JE-35915587.012.5:122.032.75JE FSRNC2618FSR-2.0330.0NC
    JE-31512287.013.5:122.032.75JE FSRNC2618FSR1.6322.0NC


    Compatibility (engine codes):

    • Toyota: 4U-GSE (D-4S, naturally aspirated)
      Subaru: FA20D (naturally aspirated). Not compatible with FA20F/FA20DIT (turbo).


    Original vehicles equipped with the 4U-GSE / FA20D :

    BrandModelEngine codePowerYears
    ScionFR-S ZN6 (NA)4U-GSE200 hp2013 – 2016
    SubaruBRZ ZC6 (Phase 1)FA20D200 hp2012 – 2016
    SubaruBRZ ZC6 (Phase 2, BVM US)FA20D205 hp2017 – 2020
    Toyota86 ZN6 (NA)4U-GSE205 hp (BVM US)2017 – 2020
    ToyotaGT86 ZN6 (EU)4U-GSE200 hp2012 – 2021


    OEM piston references :

    • Subaru BRZ (FA20D) – right side (STD): 12013AB621 (replaces 12013AB620).
      Subaru BRZ (FA20D) – side left (STD): 12018AB621 (replaces 12018AB620).
      Subaru BRZ (FA20D) – right side (OS 0.50): 12013AB641 (replaces 12013AB640).
      Subaru BRZ (FA20D) – side left (OS 0.50): 12018AB641 (replaces 12018AB640).
      Toyota GT86 / 86 (4U-GSE): variable references depending on market (ex. 13101‑WB001). Please confirm via the Toyota EPC with the VIN.

    Warning: Before installation, please verify the integrity and conformity of each component of the piston kit as well as the correctness of the assembly in the engine; any warranty is strictly limited to the parts included in the piston kit.