SKU: 178790 | UPC: 840232718492
BorgWarner Turbine Housing S400SX SX 1.25 A/R-T4 VTF (87mm) for 2003-2018 Dodge Ram Cummins 5.9L 6.7L
BorgWarner S400SX turbine housing delivers precise exhaust flow control with 1.25 A/R ratio T4 divided inlet and V-band outlet for 87mm turbine wheels. Designed for high-performance builds on 2003-2018 Dodge Ram 2500 3500 Cummins 5.9L and 6.7L trucks. Boosts turbo response and supports power levels over 900 HP in racing and heavy-duty applications.
Key Features
- 1.25 A/R Ratio: Balances quick spool-up with high-RPM exhaust flow for strong mid-range torque and top-end power
- T4 Divided Inlet: Matches OEM-style manifolds on Cummins engines for efficient pulse energy recovery and reduced lag
- V-Band Turbine Outlet: Enables fast clamp connection for leak-free seals and simple turbo removal during maintenance
- 87mm Turbine Compatibility: Optimized for S400SX3-87 wheels handling 850-1100 HP in diesel performance setups
- Ni-Resist Iron Casting: Resists extreme heat up to 1700°F with thick walls for long-term durability under boost
Product Notes
- Requires S400SX center housing and matching compressor cover for complete assembly
- Open volute design pairs with non-VGT center sections on Cummins swaps
- Standard ground shipping with no core charge or LTL requirements
Installation Notes
- Professional installation recommended.
- Torque T4 flange bolts to 25-30 ft-lbs using anti-seize compound
- Uses standard V-band clamp on 4.00-inch outlet compatible with 5-inch downpipes
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2007 | Dodge | Ram 2500 | 5.9L Cummins |
| 2003-2007 | Dodge | Ram 3500 | 5.9L Cummins |
| 2007.5-2018 | Ram | 2500 | 6.7L Cummins |
| 2007.5-2018 | Ram | 3500 | 6.7L Cummins |
| 2019+ | Ram | 2500 | 6.7L Cummins |
| 2019+ | Ram | 3500 | 6.7L Cummins HO |
| 2011-2016 | Ford | F-250 Super Duty | 6.7L Power Stroke |
| 2006-2010 | Chevrolet | 2500HD | 6.6L Duramax |
Why Choose BorgWarner?
- Supplies OEM turbos to Dodge Ram Ford GM truck lines
- Investment cast housings from high-volume production for consistent quality
- Field-tested in NHRA Pro Mod and diesel sled pulling competitions
Frequently Asked Questions
-
Q: Does this housing bolt directly to stock Cummins manifolds?
A: Yes T4 divided inlet aligns with factory 5.9L and 6.7L manifolds using eight M10 bolts -
Q: What material resists turbine heat best?
A: Ni-Resist ductile iron casting provides superior thermal stability and crack resistance over standard cast iron -
Q: What warranty coverage applies?
A: One-year unlimited mileage warranty against manufacturing defects when installed by certified shop
Shipping & Handling
- Method: Standard ground
- Availability: In stock - ships same or next business day
- Packaging: Protective foam inserts in 16 x 16 x 16 inch double-wall box
- Weight: 28 lbs
BorgWarner
BorgWarner turbochargers and turbo components are stocked at Black Ops Auto Works for LS, Coyote, 2JZ, EJ, K-series, Audi Volkswagen, Cummins, Power Stroke, and Duramax builds. Shop EFR turbochargers, S200, S300, S400 units, replacement turbos, SuperCore assemblies, cartridges, turbine housings, compressor covers, wastegates, oil lines, V-band hardware, boost control parts, turbo blankets, charge pipes, intercoolers, and turbo manifolds built around real enthusiast applications. Black Ops Auto Works carries 122 BorgWarner SKUs across gasoline performance, diesel upgrades, replacement turbo, and supporting component categories. Use year, make, model, trim, engine, and drivetrain filters to confirm the correct part before ordering. What BorgWarner Covers EFR and S-Series Turbochargers BorgWarner EFR and S-Series offerings support compact import builds, V8 swaps, and high-output diesel applications. The catalog includes complete turbochargers, SuperCore assemblies, cartridges, turb...
View BorgWarner Products
Forced Induction
Forced induction is the fastest way to add real power to an engine without adding displacement, and this collection covers the full range of turbocharger, supercharger, intercooler, and boost control hardware needed to build a reliable boosted platform. Whether you are running a factory turbo upgrade, swapping to a bigger frame turbocharger, adding a centrifugal or roots style supercharger, or dialing in a nitrous system for a quick shot of extra power, you will find the components here to build and support the setup correctly. Every part in this collection is organized by system type so you can move from a stock turbocharger to a properly supported forced induction build in one place. Intercoolers, wastegates, blow off valves, boost controllers, and water meth injection components are all included alongside the core turbo and supercharger hardware so the entire boost system can be sourced together. What This Category Covers This collection includes turbochargers, turbo kits, s...
View Forced Induction Products
Turbine Housings
Turbine Housings include replacement hot sides and turbine housing kits for performance turbocharger builds. Shop T25, T3, T4, divided flange and V-band configurations for Garrett, BorgWarner, Turbosmart and other popular turbo platforms. Every product is filterable by turbo frame, flange, A/R ratio and housing configuration so the correct hot side ships the first time. Black Ops Auto Works carries 95 turbine housing SKUs across divided housings, open housings, V-band outlets, wastegate provisions and replacement turbo components. What This Turbo Collection Covers Hot sides and replacement housings A turbine housing directs exhaust energy through the turbine wheel and establishes the turbine inlet, outlet and A/R configuration. This collection includes replacement housings and upgrade options for common turbo frames and motorsports applications. Flange and Outlet Choices T25, T3, T4 and V-band The inlet flange must match the exhaust manifold or adapter. Confirm whether the setup...
View Turbine Housings Products
Turbochargers & Components
Turbochargers and turbo components for import, domestic, and European performance builds are stocked at Black Ops Auto Works. Shop complete turbochargers, turbo rebuild kits, wastegates, turbo manifolds, and turbo hardware for naturally aspirated conversions and turbo upgrades alike. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 565 turbocharger SKUs spanning complete units, rebuild kits, and supporting hardware. What This Category Covers The Turbochargers and Components category covers complete turbocharger units, upgraded drop-in turbos, turbo rebuild and repair kits, wastegates, and the supporting hardware needed to install or upgrade a turbocharger. Coverage spans stock-replacement turbos through big single and twin-turbo setups for serious horsepower goals. Categories Included Complete turbochargers, drop-in and hybrid turbo upgrades, turbo rebuild kits, cartridges, waste...
View Turbochargers & Components Products


