About this product
Premium Twin-Stage Turbocharger CHRA Cartridge for Volvo D4 / D5 Drive-E Engines | B01V-R2S Architecture Restore immediate boost response, eliminate low-RPM torque lag, and prevent internal oil blow-by into the intercooler with this premium Turbocharger CHRA (Center Housing Rotating Assembly) Cartridge . Specially engineered to handle the intense thermal loads and tight backpressures demanded by Volvo's advanced twin-turbocharged Drive-E diesel powerplants, this high-precision core replacement resolves severe forced-induction breakdown issues including high-pitched compressor whining, unburnt exhaust smoke, and excessive shaft play. Belonging to the high-performance BorgWarner B01V-R2S / KP35-R2S twin-stage regulated compounding family, this replacement core is precision-machined to match production component index references 1638-970-0015, 1000-970-0178, 1000-970-0111, 1000-970-0150, 1000-970-0162, 1000-970-0218, 1000-970-0331, and 1638-970-0021 . It aligns directly with genuine Volvo original equipment tracking references 31441451, 50689818, 31293653, 31431983, 31459963, and 31492976 . Sourcing an isolated dynamic-balanced CHRA cartridge allows luxury specialty workshops and technicians to entirely refresh high-wear internal rotating elements while cleanly retaining the complex, expensive original compounding manifolds. Detailed Luxury Vehicle & Engine Application Mapping This premium twin-stage diesel core is custom-tailored to communicate seamlessly with Volvo's modern Drive-E SPA and P3 platform architectures:
Key features
- VSR High-Speed Dynamic Balancing: The integrated rotor, shaft, and compressor wheel undergo dynamic balancing on computerized Vibration Sorting Rigs (VSR) at full operational limits to eliminate micro-vibrations, minimize luxury cabin harshness (NVH), and prevent early bearing degradation.
- High-Temperature Inconel Metallurgy: Features high-nickel alloy turbine wheels built to endure continuous high exhaust gas temperatures during active DPF regeneration cycles and sustained high-speed driving.
- Precision Fluid Control: High-grade thrust collar layouts and advanced journal bearing architecture ensure consistent oil film boundaries under continuous high-speed cruising.
