Genuine BorgWarner S400SX4 75mm Turbocharger
The Genuine BorgWarner S400SX4 Turbocharger (171702) is built for serious diesel performance, delivering exceptional airflow, durability, and efficiency for high-horsepower street, towing, competition, and custom engine applications. Featuring a 75mm Extended Tip Technology (ETT) compressor wheel, a 96mm turbine wheel, and a 1.32 A/R twin-scroll turbine housing, this turbocharger offers outstanding performance across a wide operating range.
Designed around BorgWarner's proven AirWerks platform, the S400SX4 utilizes twin hydrodynamic journal bearings, an advanced SX4 compressor wheel, and anti-surge compressor cover technology to improve airflow, compressor efficiency, and boost response while maintaining exceptional reliability. Whether you're building a high-performance street truck, dedicated tow rig, drag truck, or sled puller, the S400SX4 is engineered to handle demanding horsepower levels with confidence.
Features
- Genuine BorgWarner AirWerks S400SX4 turbocharger
- 75mm Extended Tip Technology (ETT) compressor wheel
- 96mm turbine wheel
- 1.32 A/R twin-scroll turbine housing
- Twin hydrodynamic journal bearing design
- SX4 compressor wheel for increased airflow and efficiency
- Compressor cover with anti-surge recirculation grooves
- Adjustable compressor and turbine housing orientation
- Half Marmon turbine outlet
- Built for high-horsepower diesel performance applications
Specifications
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Compressor Wheel Inducer: 75 mm
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Compressor Wheel Exducer: 100 mm (3.94")
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Turbine Wheel Inducer: 96 mm
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Turbine Wheel Exducer: 88 mm (3.47")
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Turbine Housing: Twin Scroll
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Turbine Housing A/R: 1.32
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Turbine Outlet: Half Marmon
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Original Turbine Housing: BorgWarner 171698
Applications
- High-performance diesel street trucks
- Heavy-duty towing applications
- Competition and drag racing trucks
- Sled pulling
- Custom diesel engine builds
BorgWarner Part Number: 171702
OEM Cross References
171702
Fitment Note: This turbocharger is intended for custom performance applications and is not a direct replacement for a specific OEM vehicle. Compatibility depends on your engine combination, exhaust manifold, and installation requirements. The standard configuration includes BorgWarner turbine housing 171698. If you require a different turbine housing or need assistance selecting the correct S400SX4 configuration, contact Industrial Injection before ordering.