Description
Restore lost boost pressure and engine performance with the BorgWarner 171924 S400 Turbocharger Cartridge (CHRA). This genuine OEM-quality Center Housing Rotating Assembly is engineered as a direct-fit replacement for BorgWarner S400 series turbochargers commonly found on heavy-duty diesel engines in commercial trucks, agricultural equipment, and industrial machinery.
The CHRA (Center Housing Rotating Assembly) is the heart of your turbocharger — it contains the turbine shaft, compressor wheel, precision bearings, and seals. Rather than replacing the entire turbocharger assembly, installing a new cartridge allows you to rebuild your existing turbo at a fraction of the cost, provided the compressor and turbine housings are in good condition. Fits BorgWarner turbo part numbers 171206 and 174828. Used in Mack turbo part numbers 631GC5145AM AND 631GC5173AM. Mack engine is E7 – 427 / 460 version, for model years 19999 – 2006.
Key Features:
- OEM Part Number: 171924
- Turbo Series: BorgWarner S400
- Component Type: CHRA / Turbo Cartridge / Center Housing Rotating Assembly
- Precision-balanced rotating assembly for smooth, reliable boost delivery
- New bearings and seals for long-lasting performance and oil-tight operation
- Direct OEM replacement — exact fit, no modifications required
- Compatible with existing S400 compressor and turbine housings
- Ideal for commercial diesel engine rebuilds and turbo repairs
Installation Note: This cartridge requires disassembly of your existing S400 turbocharger. Your original compressor housing, turbine housing, and wastegate/actuator (if equipped) will be reused. Professional installation by a qualified turbo technician is strongly recommended for best results.
Verify fitment with your engine serial number or turbo housing part number before ordering.
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