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BorgWarner Turbine Housing S400SX SX .90 A/R-T4 VTF (87mm) - Black Ops Auto Works
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BorgWarner Turbine Housing S400SX SX .90 A/R-T4 VTF (87mm)

BorgWarner
BWA178787
840232718225
Turbine Housings
1 Units In Stock - Ships Next Business Day
$ 312.45 $ 249.96
$ 249.96

SKU: 178787 | UPC: 840232718225

BorgWarner Turbine Housing S400SX SX .90 A/R-T4 VTF (87mm) for 2003-2022 Ram Cummins 5.9L/6.7L

BorgWarner S400SX turbine housing delivers precise exhaust flow control with .90 A/R T4 inlet and V-band outlet for 87mm turbine wheels. Fits 2003-2022 Ram 2500/3500 Cummins 5.9L and 6.7L diesel trucks using S400SX frame turbos. Improves turbo response and supports 800+ HP builds with balanced spool and top-end power.

Key Features

  • .90 A/R Ratio: Balances quick spool-up under 2500 RPM with high exhaust flow for peak power above 4000 RPM
  • T4 Inlet Flange: Direct bolt-on to T4 open manifolds common on Cummins applications for simple upgrades
  • V-Band Turbine Outlet: Secure 4-inch V-band clamp allows fast assembly and disassembly during service
  • 87mm Turbine Compatible: Matches S400SX-E turbine wheels for efficient energy transfer in 600-1000 HP setups
  • Ni-Resist Construction: High-temperature ductile iron casting withstands 1800+ degree exhaust gases for long-term reliability

Product Notes

  • Pair with matching BorgWarner S400SX compressor cover and CHRA for complete turbo assembly
  • Inspect turbine wheel and bearings during install for optimal performance
  • Standard ground shipping within continental US excludes freight to HI/AK/PR

Installation Notes

  • Professional installation recommended.
  • Torque V-band clamp to 15 ft-lbs and T4 flange bolts to 25-30 ft-lbs
  • Compatible with aftermarket T4 manifolds and stock Cummins up-pipe configurations

This Part Fits

Year Make Model Submodel
2003-2007 Dodge Ram 2500 5.9L Cummins Diesel
2003-2007 Dodge Ram 3500 5.9L Cummins Diesel
2007-2009 Dodge Ram 2500 6.7L Cummins Diesel
2007-2009 Dodge Ram 3500 6.7L Cummins Diesel
2010-2022 Ram 2500 6.7L Cummins Diesel
2010-2022 Ram 3500 6.7L Cummins Diesel
2011-2022 Ford F-250 Super Duty 6.7L Power Stroke
2011-2022 Ford F-350 Super Duty 6.7L Power Stroke

Why Choose BorgWarner?

  • Supplies turbos to Ford Cummins and GM for OEM reliability
  • Backed by decades of motorsport wins in diesel drag racing
  • Machined to micron tolerances for consistent flow and fit

Frequently Asked Questions

  • Q: Will this housing fit my 2006 Ram 5.9L Cummins with S400SX turbo?
    A: Yes it bolts directly to T4 manifolds on 2003-2007 Ram Cummins using S400SX frame with 87mm turbine wheel
  • Q: What material is the housing made from?
    A: Ni-Resist ductile iron handles extreme heat and thermal cycling in high-boost diesel applications
  • Q: What is the warranty on this turbine housing?
    A: BorgWarner offers 1-year unlimited mileage warranty when installed by certified shop with proof

Shipping & Handling

  • Method: UPS Ground Standard
  • Availability: In stock - ships same or next business day
  • Packaging: Foam-protected box 15 x 12 x 12 inches
  • Weight: 26 lbs

Request For Information

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