2011 2012 2013 2014 2015 Hyundai Sonata Kia Sorento 2.4L GDI Engine G4KE Theta II

Eliminate engine knock, oil consumption, and catastrophic bearing failure with this premium 2011-2015 Hyundai Sonata / Kia Sorento 2.4L Replacement Engine. Imported directly as a low-mileage powertrain solution, this genuine G4KE / G4KJ platform dual-CVVT engine offers a highly dependable, cost-effective alternative to expensive dealership block replacements. Hand-selected and rigorously compression-tested, these engines have significantly fewer miles (approximately 45k–60k) compared to domestic high-mileage salvage units. Built with refined internal oiling configurations, this complete longblock assembly restores factory performance, fuel efficiency, and peace of mind to your mid-size sedan or SUV.

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Vehicle Specifications

• Year Range: 2011, 2012, 2013, 2014, 2015

• Make & Model: Hyundai Sonata / Kia Sorento

• Engine Code: G4KE / G4KJ Block Architecture (Interchanges with US 2.4L Theta II)

• Displacement: 2.4 Liters (2359 cc)

• Engine Type: Inline 4-Cylinder DOHC 16-Value Dual CVVT

• Fuel Delivery: Multipoint Injection (MPI) / Direct Injection (GDI) Cross-Compatible

• Condition: Premium Used Import (Inspected, cleaned, and compression/leak-down tested)

• Mileage: Approx. 45,000–60,000 miles (Low overseas usage)

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Vehicle Fitments

• Direct US-Spec Replacement Compatibility:

  • 2011-2014 Hyundai Sonata (2.4L Models)

  • 2011-2015 Kia Sorento (2.4L Models)

  • 2011-2015 Kia Optima (2.4L Models)

  • 2011-2015 Hyundai Santa Fe / Santa Fe Sport (2.4L Models)

  • 2011-2015 Hyundai Tucson (2.4L Models)

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Included Parts

• Longblock Core: Complete Engine Block, Cylinder Head, Oil Pan, and Valve Cover

• Intake Manifold: Factory lower and upper manifold assembly

• Fuel Delivery Components: Fuel rails and standard injector set

• Sensors: Camshaft position sensors, crankshaft sensor, and knock sensor

• Pulley Assembly: Harmonic balancer/crank pulley and water pump assembly

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Installation & USDM Drop-In Notes

• Component Swapping (Crucial): While the structural engine block, pistons, oil pump, and cylinder head are identical, installers must transfer the original US-spec intake manifold, exhaust manifold, alternator, starter, wiring harness, and select electronic sensors from the old engine to ensure a direct plug-and-play match with the domestic vehicle's ECU.

• Oil System Prep: Due to known oiling sensitivities in the 2.4L Theta engine family, it is mandatory to prime the oil pump before the first startup, install a fresh OEM oil filter, and fill with premium high-grade full synthetic 5W-20 or 5W-30 motor oil.

• Preventative Maintenance: We highly advise replacing the rear main seal, front crankshaft seal, valve cover gasket, spark plugs, and thermostat while the engine is out of the vehicle to guarantee a completely leak-free, long-term repair.