Product Overview:
This is an RHV4 variable-nozzle-turbine (VNT) turbocharger from IHI, engineered to OEM specifications for the Isuzu 4JJ1/4JJ1TC 3.0L diesel engine used across the D-Max, Rodeo, and Holden Colorado platforms. As a VNT design, it uses adjustable turbine vanes to optimize boost delivery across the RPM range, improving low-end torque and throttle response while reducing lag compared to fixed-geometry turbos. It restores factory performance for units suffering from power loss, boost leaks, unusual noise, or actuator-related faults — common issues as VNT mechanisms wear over time.
Key Features:
- OEM-Matched Fitment: Manufactured to match the mounting configuration, flange pattern, and VNT actuator linkage of the original 8981320692 turbocharger for a direct bolt-on replacement.
- Variable Nozzle Turbine (VNT) Technology: Electronically controlled vane positioning adjusts dynamically with engine load, delivering smoother, more responsive power across the RPM range.
- Water-Cooled Design: Matches the factory water-cooled cartridge specification for improved thermal management and long-term reliability.
- Precision-Balanced Turbine & Compressor: Dynamically balanced (VSR-tested) for smooth operation and reduced vibration under sustained load.
- Durable Construction: Built to withstand the heat and pressure cycles typical of turbocharged diesel pickup/SUV engines.
- Broad Regional Coverage: Fits Isuzu D-Max/Rodeo and their Holden-badged Colorado counterparts, useful for sellers serving both global and Australian/NZ markets.
- Warranty: Typically 12-month manufacturer warranty (confirm specific terms with your supplier/listing).
Before You Buy:
Please confirm the part number stamped on your original turbocharger (8981320692, etc.) against your vehicle’s exact engine code (4JJ1 vs. 4JJ1T vs. 4JJ1TC) and production year, since D-Max/Colorado turbo specifications — including VNT actuator type and oil supply line configuration — can vary across model years. Let us know your vehicle’s VIN if you’d like help verifying exact fitment before ordering.
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