Product Description
BorgWarner 177101 S400SX3 Turbocharger — S475/83, 1.10 A/R, T4 Housing
BORGWARNER 177101 is the go-to S400SX3 for hard-running street/strip and tow-rig builds. The S475 compressor with an 83mm turbine and twin-scroll T4 1.10 A/R housing delivers serious top-end flow while keeping packaging and manifold options flexible.
Key Specifications
- Compressor (S475): ~75mm inducer, 5.0" hose inlet, 4.21" V-band outlet
- Turbine: 83mm wheel, 1.10 A/R twin-scroll T4 housing, 4" Marmon/flat-flange outlet
- Center Section: hydrodynamic journal bearings; adjustable compressor & turbine housing orientation
Great as a high-power single on built fuel systems or the atmospheric charger in S300/S400 compounds. Verify manifold flange, downpipe, oil feed/return, and charge piping.
What’s Included
- BorgWarner 177101 S400SX3 turbocharger (S475/83, 1.10 A/R T4)
Recommended Add-Ons
- CPP -12AN Oil Drain Kit (S300/S400)
- Fleece FPE-34856 S300/S400 Turbo Stud Kit
- CPP S400 4.0" Compressor Discharge Elbow
Popular Build Paths
Single T4 Upgrade: Pairs with a T4 manifold and matching downpipe; quicker to package than T6 with excellent top-end for 5.9/6.7L builds.
S300/S400 Compounds: Run 177101 as the low-pressure unit with an S300 high-pressure charger for fast spool + big air.
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Dodge/Ram Cummins
- CUMMINS MAIN HUB (Home tab)
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Ford Powerstroke
GM Duramax
FAQ
Will the 177101 bolt onto my factory manifold?
No. The 177101 uses a T4 divided (twin-scroll) turbine inlet. Most factory setups are T3 or T6; use the correct T4 divided manifold and matching downpipe.
Is this a good single for daily street use?
With proper fueling and supporting mods, yes—spool is later than an S300 but streetable on built 5.9/6.7L Cummins and comparable Powerstroke/Duramax builds.
What are the inlet and outlet sizes?
Typical S400SX3 covers use a 5.0" compressor inlet and 4.21" V-band outlet; turbine outlet is a 4" Marmon/flat-flange. Verify against your piping and clamps.
Do I need an oil restrictor?
Generally no for journal-bearing S400s. Use a clean, correctly sized feed and a -10AN to -12AN return with a free-draining path.
Can CPP help spec compounds or parts?
Absolutely—contact us for S300 pairing, manifold options, gates, and charge piping tailored to your goals.
Why Buy BorgWarner Turbos from CPP Diesel
- Expert fitment for Cummins, Powerstroke & Duramax platforms
- Fast shipping with careful packaging
- Stock replacement to fully custom compound solutions
- Real phone & chat support from diesel pros
