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  • BORGWARNER 171698 S400SX4 TURBINE HOUSING — 96MM, 1.32 A/R, T6

    • BORGWARNER 171698 S400SX4 TURBINE HOUSING — 96MM, 1.32 A/R, T6

    $422.17
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    SKU:
    BW171698
    UPC:
    840232708394
    Width:
    11.00 (in)
    Height:
    11.00 (in)
    Depth:
    11.00 (in)
    Shipping:
    Free Shipping
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    Product Description

    BorgWarner 171698 S400SX4 Turbine Housing — 96mm, 1.32 A/R, T6 (Twin-Scroll) is a genuine AirWerks cast-iron housing built for big-air S400 setups. The divided T6 inlet and 1.32 A/R volute deliver serious top-end flow for high-horsepower single turbos or the atmospheric charger in compound builds. Expect later spool versus smaller A/Rs, rewarded by lower drive pressure and stronger high-RPM power.

    Fitment quick hits: S400/S400SX/S400SX-E frame with 96mm turbine wheel, T6 divided (twin-scroll) inlet, and 5.75" Marmon V-band outlet (verify outlet/hardware for your setup). Ideal on S410SX/S475/S478/S480-style builds when you need maximum exhaust flow capacity.

    BorgWarner 171698, S400SX4 turbine housing, 96mm turbine, 1.32 A/R, T6 twin scroll, S400 housing, S410SX, S475, S478, S480, 5.75 inch Marmon outlet, divided T6, diesel performance turbo parts, CPP Diesel

    Fitment & Notes

    • Turbo frame: BorgWarner S400 / S400SX / S400SX-E
    • Turbine wheel compatibility: 96mm S400 wheel (verify hub/exducer dimensions)
    • Inlet flange: T6 divided (twin-scroll)
    • Outlet: 5.75" Marmon V-band (aka Detroit-style)
    • Recommended use: Big single S400 builds or low-pressure/atmospheric charger in compounds
    • Verify before purchase: turbine wheel size, manifold flange, downpipe/outlet connection, and mounting hardware

    Cross-Reference / Alternatives (BorgWarner on CPP Only)

    FAQ

    Will 171698 fit my S400?

    It’s designed for S400/S400SX/SX-E frames using a 96mm turbine wheel with a T6 divided inlet and 5.75" Marmon outlet. Always confirm your turbine wheel, inlet flange, and outlet style.


    How does 1.32 A/R change performance vs. 1.10 or 1.15?

    A larger A/R like 1.32 shifts spool later but increases top-end flow and helps reduce drive pressure at higher RPM—great for big-power goals when the combo (fueling, cam, gearing) supports it.


    What turbos commonly pair with this housing?

    Popular pairs include S410SX/S475/S478-style compressors with the 96mm turbine wheel. In compounds, use it as the atmospheric (low-pressure) charger with a gated high-pressure S300.


    Do I need special hardware?

    Confirm your T6 manifold, 5.75" Marmon downpipe/v-band, and correct clamp/gasket set. Many S400 builds reuse existing v-band hardware; verify sizing before install.

     

    Specifications for BORG WARNER 171698

    Turbo Series S400 / S400SX / S400SX-E
    Compressor Varies by build (commonly S475/S478/S480)
    Turbine 96mm wheel compatibility
    Center Section S400 journal-bearing center section (verify model)
    A/R & Inlet 1.32 A/R, T6 divided (twin-scroll)
    Outlet 5.75" Marmon V-band
    UPC 840232708394
    GTIN 0840232708394
    E-Codes / Emissions Not CARB legal; competition/off-road use where permitted
    Cross Reference 171701, 171702, 14969880000–14969880004 (verify), 177216
    Shipping Info Typically ships ground; box approx. 11" × 11" × 11" (check cart at checkout)
    Prop 65 WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov

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