Hyundai Sonata G4KH Engine Overview
Hyundai Sonata G4KH 2.0L Turbo Engine for Sale
If your Hyundai Sonata 2.0 Turbo requires an engine replacement, Hyundai & Kia Engines can supply a G4KH 2.0L Turbo GDI petrol engine for compatible LF-generation Sonata applications.
The G4KH belongs to Hyundai and Kia’s Theta II engine family.
It combines:
- 2.0L displacement
- Turbocharging
- Gasoline Direct Injection
- Inline four-cylinder configuration
- DOHC 16-valve cylinder head
- Variable valve timing
The engine was used in Australian Hyundai Sonata 2.0T models during the LF generation.
Depending on the model year, Australian G4KH Sonata applications produced approximately:
180 kW @ 6,000 rpm
and
350–353 Nm of torque
Although the G4KH engine code was also used in several other Hyundai and Kia vehicles, the exact engine specification can vary considerably between applications.
Hyundai Kona N G4KH Engine Specifications
| Specification | Details |
|---|---|
| Engine Code | G4KH |
| Engine Capacity | 2.0L / 1998cc |
| Fuel Type | Petrol |
| Fuel System | GDI – Gasoline Direct Injection |
| Aspiration | Turbocharged & Intercooled |
| Configuration | Inline 4-Cylinder |
| Common Generation | Sonata LF |
| Engine Family | Hyundai / Kia Theta II |
| Typical Australian Power | 180 kW @ 6,000 rpm |
| Typical Australian Torque | Approx. 350–353 Nm |
| Typical Transmission | 6-Speed or 8-Speed Automatic depending on model year |
| Vehicle Application | Hyundai Sonata 2.0T |
| Drivetrain | Front-Wheel Drive |
| Engine Fitting | Available |
| Workshop Location | Hallam, Melbourne |
| Delivery | Australia-Wide |
| Warranty | Refer to current engine warranty conditions |
Is This the Correct Engine for My Hyundai Sonata?
How to Confirm Your Sonata Uses the G4KH
Not every Hyundai Sonata uses the G4KH.
The G4KH relates to compatible 2.0L turbocharged petrol Sonata variants.
Other Sonata variants were available with different naturally aspirated petrol engines and, depending on the market, other powertrains.
Before ordering, check:
- Vehicle VIN
- Existing engine code
- Whether the vehicle is a 2.0 Turbo
- Build month and year
- Sonata generation
- Transmission specification
- Original engine configuration
NOT SURE IF YOUR SONATA USES A G4KH?
Need Us to Fit Your Hyundai & Kia Engine?
Hyundai & Kia Engines offers professional engine fitting from our workshop in Hallam, Melbourne.
Hyundai & Kia Engines Delivered Across Australia
- Melbourne
- Sydney
- Brisbane
- Adelaide
- Perth
- Canberra
- Hobart
- Regional Victoria
- Regional NSW
- Regional Queensland
- Regional South Australia
- Regional Western Australia
Warranty on Your Hyundai & Kia Engine
Before installation, customers and installers should review the applicable warranty requirements and ensure associated vehicle systems are checked where necessary.
- Engine identification
- Fitment questions
- Installation enquiries
- Warranty information
- Freight enquiries
- General technical questions relating to the engine supplied
Hyundai Sonata G4KH Engine FAQs
What is the G4KH engine?
What Hyundai Sonata uses the G4KH?
How much power does the Sonata G4KH produce?
Is the G4KH turbocharged?
Is G4KH GDI?
Does every Hyundai Sonata use the G4KH?
Is the Sonata G4KH the same as the Kona N G4KH?
Can I use a G4KH from another Hyundai or Kia?
Why do you need my VIN?
Can you install my Sonata engine?
Do you deliver Sonata engines interstate?
What components are included?
G4KH vs Other Hyundai Sonata Engines
Do All Sonata Petrol Engines Use the G4KH?
No.
The Sonata was manufactured with several different petrol engine options.
The G4KH specifically refers to the 2.0L turbocharged GDI application.
Other Sonata models may use naturally aspirated engines with completely different engine codes.
This means that searching simply for a “Hyundai Sonata 2.0 engine” is not enough.
When purchasing a replacement engine, confirm:
Engine code → Turbo or naturally aspirated → Fuel system → Build date → VIN
before ordering.
Are All G4KH Engines Interchangeable?
G4KH Engine Code Does Not Guarantee Direct Fitment
The G4KH has been used across multiple Hyundai and Kia models.
Depending on the market and production period, G4KH applications include vehicles such as:
- Hyundai Sonata
- Hyundai Kona N
- Hyundai i30 N
- Hyundai Veloster N
- Kia Optima
- Other selected Hyundai and Kia models
However, these engines can differ significantly.
Differences may include:
- Turbocharger specification
- Power output
- Compression ratio
- Intake system
- Exhaust system
- Sensors
- Ancillary components
- Engine calibration
- Fuel-system components
- Transmission compatibility
For example, the Kona N G4KH produces substantially more power than the Australian Sonata G4KH application.
Do not assume that any G4KH engine can be installed directly into your Sonata.
Early vs Later Hyundai Sonata G4KH
Why the Build Year Matters
Australian LF Sonata 2.0 Turbo models were produced with changes during the generation.
Earlier G4KH Sonata applications commonly used:
- 2.0L Turbo GDI
- Approximately 180 kW
- Approximately 350 Nm
- Six-speed automatic transmission
Later applications retained the 180 kW output but moved to approximately 353 Nm and were paired with an eight-speed automatic transmission.
These changes reinforce why VIN and build-year verification is important when selecting a replacement engine.
Common Hyundai Sonata G4KH Engine Problems
When Might Your Sonata Need an Engine Replacement?
Symptoms that warrant proper engine diagnosis can include:
- Persistent engine knocking
- Excessive oil consumption
- Low oil-pressure warnings
- Excessive mechanical noise
- Persistent misfires
- Reduced engine performance
- Loss of boost
- Excessive exhaust smoke
- Repeated overheating
- Low cylinder compression
- Oil contamination
- Coolant contamination
- Bearing damage
- Piston or cylinder damage
- Cylinder-head damage
- Engine seizure
- Major internal engine damage
Hyundai Sonata G4KH Engine Compatibility
- Vehicle generation
- Build date
- Engine specification
- Market specification
- Ancillary components
- Original engine configuration
Important
What to Check Before Installing a Replacement Engine
- Cooling system
- Radiator condition
- Thermostat
- Oil supply and lubrication system
- Intake system
- Fuel system
- Engine mounts
- Hoses and connections
- Associated sensors and components
Why Buy From Hyundai & Kia Engines?
Hyundai & Kia Engine Specialists
From our Hallam workshop, we supply engines to private vehicle owners, mechanics and automotive workshops throughout Australia.
Why customers choose us:
- Specialists in Hyundai and Kia engines
- Highly competitive engine pricing
- Professional engine fitting available
- Hallam, Melbourne workshop
- Australia-wide engine freight
- Assistance identifying the correct engine
- Warranty and technical support
- Large range of Hyundai and Kia replacement engines
Get In Touch With Us
Location
3 David Lee Rd, Hallam VIC 3803, Australia
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