Product Description
BorgWarner 179171 S400SX3 Turbocharger S471/83 1.10 A/R Race Cover T4 Housing
The BorgWarner 179171 S400SX3 Turbocharger S471/83 1.10 A/R Race Cover T4 Housing is a genuine AirWerks performance turbocharger engineered for high-horsepower diesel applications, drag racing, sled pulling, competition builds, and compound turbocharger systems. Featuring a 71mm extended-tip compressor wheel, an 83mm turbine wheel, a high-flow race compressor cover, and a 1.10 A/R twin-scroll T4 turbine housing, the 179171 delivers exceptional airflow, excellent surge resistance, and proven durability under extreme operating conditions.
Built on BorgWarner's legendary S400SX3 platform, the 179171 is a popular choice as a powerful single turbocharger on built Cummins, Duramax, and Power Stroke engines or as the atmospheric charger in S300/S400 compound turbo systems. The race cover's ported-shroud design broadens the compressor map and improves surge margin, making it ideal for aggressive fueling and high airflow applications.
Features
- Genuine BorgWarner AirWerks S400SX3 turbocharger
- S471 extended-tip compressor wheel design
- 71mm compressor inducer
- 83mm turbine wheel
- High-flow race compressor cover
- 1.10 A/R twin-scroll divided T4 turbine housing
- Twin hydrodynamic journal bearing system
- Ported-shroud anti-surge compressor cover design
- Adjustable compressor and turbine housing orientation
- Excellent for high-horsepower single turbo applications
- Ideal atmospheric charger for compound turbo systems
- Built for extreme diesel performance and durability
Fitment
- Universal diesel performance applications
- 5.9L Cummins performance and competition builds
- 6.7L Cummins high-horsepower applications
- 6.6L Duramax custom turbo setups
- 6.0L Power Stroke performance builds
- 6.4L Power Stroke racing applications
- 6.7L Power Stroke custom turbo systems
- High-horsepower single turbo configurations
- S300/S400 compound turbocharger systems
- Custom fabricated diesel performance projects
Note: This turbocharger utilizes a divided twin-scroll T4 inlet flange and requires a compatible T4 manifold, downpipe, charge piping, oil feed and drain lines, fueling upgrades, tuning, and supporting modifications depending on the application.
What's Included
- BorgWarner 179171 S400SX3 Turbocharger
- 1.10 A/R Twin-Scroll Divided T4 Turbine Housing
- Race Compressor Cover
- Center Housing Rotating Assembly (CHRA)
- Factory Installed Journal Bearing System
Specifications
- Manufacturer: BorgWarner
- Part Number: 179171
- Turbocharger Series: AirWerks S400SX3
- Compressor Wheel: S471 Extended-Tip Design
- Compressor Inducer Diameter: 71.08mm
- Compressor Exducer Diameter: Approximately 100mm
- Compressor Cover: High-Flow Race Cover with Ported Shroud
- Compressor Inlet: 5.00 Inch
- Compressor Outlet: 4.21 Inch V-Band
- Turbine Wheel Diameter: 83.47mm
- Turbine Exducer Diameter: 74.29mm
- Turbine Housing: Twin-Scroll Divided T4
- A/R Ratio: 1.10
- Bearing System: Twin Hydrodynamic Journal Bearings
- Housing Orientation: Adjustable Compressor and Turbine Housings
- Cooling Type: Oil-Cooled
- Application: Universal Diesel Performance
- Primary Use: High-Horsepower Single Turbo or Compound Turbo Systems
Cross Reference Numbers
179171, S471, S471/83, S400SX3, BorgWarner S400SX3, AirWerks S471, 177101, 178855, 171702, 179176, 178789
FAQ
What is the advantage of the race cover on the BorgWarner 179171?
The race cover features a ported-shroud design that increases surge resistance and broadens the compressor map, making it ideal for aggressive fueling and high-airflow applications.
Can the BorgWarner 179171 be used as a single turbocharger?
Yes. The S471/83 combination is commonly used as a high-horsepower single turbocharger on built diesel engines with adequate fueling, transmission upgrades, and supporting modifications.
Is this turbocharger suitable for compound turbo systems?
Absolutely. The 179171 is frequently used as the atmospheric turbocharger in S300/S400 compound systems where high airflow and reliability are required.
Does this turbo use ball bearings?
No. The BorgWarner 179171 utilizes a proven twin hydrodynamic journal bearing system designed for durability and long service life.
Will this turbo bolt onto a stock manifold?
In most cases, no. This turbocharger requires a divided T4 manifold and supporting fabrication to ensure proper fitment and performance.
What supporting modifications are recommended?
Recommended upgrades may include larger injectors, fuel system improvements, custom tuning, intercooler upgrades, charge piping, exhaust modifications, and proper boost and drive pressure management.
