Hyundai G4KC Crankshaft 23111-2G000 combats the Connecting Rod Bearing Seizure grounding Hyundai Sonata fleets, providing a precision-machined Hyundai Theta II Crankshaft that restores factory-grade compression and long-term reliability.
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Restoring factory-grade rotation and performance to Hyundai G4KC engines, our Crankshaft (OEM: 23111-2G000) offers a definitive solution for Hyundai Theta II Crankshaft overhauls within the **Automotive Engine Core Parts** sector. This precision-engineered component is critical for resolving the inherent crankshaft failures in the 2.4L GDI and MPI platforms, serving as a high-durability replacement for the Mitsubishi 4B12 Engine Crank found in shared architectures. Each unit is sourced through our wholesale catalog to ensure rapid maintenance supply for professional repair facilities.
Specifically developed to address the chronic issues found in high-mileage Hyundai Sonata and Santa Fe fleets, this crankshaft prevents the catastrophic journal surface scoring that follows oil delivery lapses. By utilizing forged 42CrMo steel and multi-stage heat treatment, we ensure the component can withstand the high-torque demands of GDI combustion cycles. This structural foundation eliminates harmonic vibrations and restores the precise mechanical timing necessary for fuel-efficient engine operation.
| Engine Model | Hyundai G4KC (Theta II 2.4L) |
| OEM Reference | 23111-2G000, 23111-2G010 |
| Application Category | Automotive Engine Core Parts |
| Material | Forged Steel (42CrMo) |
| Journal Diameter | Standard (STD) Size |
| Cross Reference |
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Technician’s Note: When dealing with a G4KC engine, connecting rod bearing seizure usually contaminates the entire oiling system with metal shards. You must replace the oil pump and oil cooler, and thoroughly flush the block galleries before installing this new 23111-2G000 unit. Failure to do so will result in immediate journal surface scoring on the new shaft.
| Engine Model | Application Field | Equipment Models |
|---|---|---|
| Hyundai G4KC (Theta II) | Passenger Vehicles |
|
| Kia G4KC (Theta II) | Passenger Vehicles |
|
| Mitsubishi 4B12 | Global Platform |
|
Our comprehensive wholesale catalog offers a wide array of high-quality **Automotive Engine Core Parts** tailored for the Korean automotive market, ranging from the rugged D4BB diesel series to high-tech Theta gasoline units.
Category coverage: Mainstream passenger vehicle crankshafts and light commercial diesel shafts.
| Primary Part Number | Cross Ref Part Numbers | Compatible Engine Model | Compatible Machine Model |
|---|---|---|---|
| 23111-42002 | MD187921, MD102601, 2311142002 | D4BB (Compatible with 4D56) | Hyundai Porter H100, Grace |
| 23111-42011 | MD374408, 2311142910, 2311142011 | D4BH (Compatible with 4D56T) | Hyundai Starex, Libero |
| 23111-4A010 | 231114A000, 231114A010 | D4CB (A-Engine) | Hyundai H1, Starex, Kia Sorento |
| 23111-45500 | ME013668, ME136680, 2311145500 | D4DB (Compatible with 4D34) | Hyundai County, Mighty |
| 23111-27000 | D4EA, 2311127000 | D4EA (D-Engine) | Hyundai Santa Fe, Tucson |
| 23111-2G000 | 231112G010, 4B12, 231112G000 | G4KC (Compatible with 4B12) | Hyundai Sonata, Santa Fe |
| 23111-25220 | MD191302, G4JS, 4G64 | G4JS (Compatible with 4G64) | Hyundai Santa Fe, Sonata |
| 23111-45000 | D4AE, D4AF, 4D31 | D4AE / D4AF (Compatible with 4D31) | Hyundai Mighty, Chorus |
View all specs in our Hyundai Automotive Engine Core Parts Catalog.
A: Yes, as part of the Global Engine Alliance, the Hyundai G4KC and Mitsubishi 4B12 share the same crankshaft architecture. This Ruich Value unit is a direct-fit replacement for both, provided the machine uses the 2.4L configuration.
A: This is supplied as a bare crankshaft without the reluctor ring or gears. We recommend inspecting your existing reluctor ring for damage before transferring it to the new unit to ensure correct ECU timing signals.
A: While no crankshaft can run without oil, our forged steel material and induction hardening provide a much higher threshold against “seizure-on-start” compared to standard cast iron units, often preventing immediate failure during minor pressure drops.
Note: Customized/billet development based on drawings or samples is also available for high-performance or obsolete engine applications.
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