Product Overview:
This is an RHV4 (VT16) variable-nozzle-turbine turbocharger from IHI, engineered to OEM specifications for Mitsubishi’s 4D56/4D56HP 2.5L diesel engine used across the L200/Triton, Pajero Sport, and Challenger platforms. As a VGT design, it uses adjustable turbine vanes to optimize boost delivery across the RPM range, improving low-end torque and throttle response while reducing turbo lag compared to fixed-geometry designs. It restores factory performance — rated to match the original 123kW/167-170HP output — for vehicles suffering from power loss, boost leaks, unusual noise, or actuator faults.
Key Features:
- OEM-Matched Fitment: Manufactured to match the mounting configuration and flange dimensions of the original 1515A170 turbocharger for a direct, no-modification bolt-on replacement.
- Genuine IHI RHV4/VT16 Platform: The factory-fitment turbo design used specifically on Mitsubishi’s 4D56 common-rail diesel engine, known for reliable performance across pickup and SUV applications.
- Variable Nozzle Turbine (VNT/VGT) Technology: Pneumatically-actuated adjustable vanes respond dynamically to engine load for smoother, more responsive power delivery.
- High-Grade Turbine Material: Turbine shaft and wheel constructed from K418 high-nickel casting alloy for superior heat resistance — avoiding the lower-grade K13 Inconel alloy used by some budget alternatives.
- Oil-Cooled Design: Matches factory cooling specification for reliable long-term operation.
- Restores Lost Power & Efficiency: Addresses common failure symptoms — reduced power, whistling noise, boost inconsistency, and increased oil consumption.
- Warranty: Genuine OEM units typically carry a 12-month warranty; aftermarket units commonly offer up to 2-year, unlimited-mileage warranty (confirm specific terms with your supplier). Note: some suppliers apply a refundable core deposit for genuine OEM exchange units — confirm this policy before ordering.
Before You Buy:
Please confirm the part number stamped on your original turbocharger (1515A170 / 1515A222) against your L200/Triton or Pajero Sport’s exact model, production year, and market variant, since Mitsubishi’s 4D56 turbo applications can vary slightly across regions. Let us know your vehicle’s VIN or chassis number if you’d like help verifying exact compatibility before ordering.
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