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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
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