Product Overview:
This is a TD04HL4S turbocharger from Mitsubishi Heavy Industries, engineered to OEM specifications for the widely-used Hyundai/Kia Theta II 2.0L Turbo GDI engine used across the Sonata, Santa Fe Sport, Optima, and Sportage platforms. It restores factory boost pressure, throttle response, and fuel efficiency for vehicles suffering from turbo lag, power loss, unusual whining/siren-like noise, excessive smoke, or a fully failed unit — common wear points on this engine family as mileage accumulates.
Key Features:
- OEM-Matched Fitment: Manufactured to match the mounting configuration and flange dimensions of the original 90142-01031 turbocharger for a direct, no-modification bolt-on replacement.
- Genuine MHI TD04HL4S Platform: The factory-fitment turbo design used across Hyundai/Kia’s shared Theta II 2.0T engine, known for reliability across sedans, SUVs, and crossovers.
- 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.
- Journal Bearing Design: Robust journal bearing system with heat-resistant components built to withstand high exhaust temperatures and rotational speeds.
- Restores Lost Power & Efficiency: Addresses common failure symptoms — excessive blue/white exhaust smoke, loud whining/siren noise, significant power loss, and increased oil consumption.
- Pre-Shipment Inspection: Units are checked for quality before shipping to verify performance standards.
- Broad Multi-Brand Coverage: A single turbo model supports Hyundai and Kia vehicles sharing the Theta II engine, useful for sellers serving diverse customer bases.
- Warranty: Typically 1-year, unlimited-mileage warranty (confirm specific terms with your supplier — remanufactured/exchange units may require a refundable core deposit, e.g. ~$100).
Before You Buy:
Please confirm the part number stamped on your original turbocharger (90142-01031 / 28231-2G400/2G410/2G420) against your vehicle’s exact model and production year, since this Theta II turbo platform spans multiple Hyundai/Kia models across several years. Note that some suppliers require a refundable core deposit for remanufactured/exchange units — confirm this policy before ordering. Let us know your vehicle’s VIN if you’d like help verifying exact compatibility before ordering.







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