Product Description
BorgWarner 171701 S400SX4 Turbocharger — S471/96, 1.32 A/R, T6 Housing
BORGWARNER 171701 is the go-to S400SX4 for big power: a 71mm S-series compressor (S471) paired with a 96mm turbine and a twin-scroll T6 1.32 A/R housing. Built on the proven AirWerks journal-bearing center section with extended-tip compressor aero for strong flow in demanding single or atmospheric compound roles.
Key Specifications
- Compressor (S471): ~71mm inducer, 5.0" hose inlet, 4.21" V-band outlet
- Turbine: 96mm wheel, 1.32 A/R twin-scroll T6 housing, 5.75" Marmon outlet
- Center Section: twin hydrodynamic journal bearings; adjustable housing orientation
- Typical Power Range: ~500–1050+ HP (application dependent)
Verify manifold flange (T6), downpipe, oil feed/return (-4AN feed, -10AN to -12AN drain typical), and charge piping before purchase.
What’s Included
- BorgWarner 171701 S400SX4 turbocharger (S471/96, 1.32 A/R T6)
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 T6 Upgrade: Requires a T6 manifold & matching downpipe; later spool than T4 but huge top-end flow for competition or big-fuel street builds.
S300/S400 Compounds: Run 171701 as the low-pressure (atmospheric) turbo with an S300 high-pressure unit for fast spool + big airflow.
Shop Turbo Sections by Vehicle
Dodge/Ram Cummins
- CUMMINS TURBO HUB (Home tab)
- 1989–1993 5.9L (VE) — Turbocharger
- 1998.5–2002 5.9L (VP44) — Turbocharger
- 2003–2007 5.9L CR — Turbo/Supercharger
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- 2013–2018 6.7L — Turbocharger
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Ford Powerstroke
GM Duramax
FAQ
Will the 171701 bolt onto my factory manifold?
No. It uses a T6 twin-scroll inlet. Most OE light-duty trucks use T3/T4. Plan for a T6 manifold and compatible downpipe.
Is this a streetable single turbo?
With stock fueling it will spool later than an S300 or small S400. It excels in high-fuel single setups or as the atmospheric charger in compounds.
What are the inlet/outlet sizes?
Approx. 5.0" compressor inlet, 4.21" V-band compressor outlet, and ~5.75" Marmon turbine outlet.
What power can it support?
Commonly used in ~500–1050+ HP builds depending on fuel, displacement, cam, and overall setup.
Can CPP help spec the rest of the kit?
Absolutely—contact us for the best S300 pairing, manifold, gates, oiling, and piping for your goals.
Why Buy BorgWarner Turbos from CPP Diesel
- Expert fitment guidance across Cummins, Powerstroke & Duramax
- Fast shipping and careful packaging
- From stock replacement to full compound systems
- Phone & chat support from diesel pros
