Engine Hyundai-Kia G4KP

The 2.5-liter Hyundai-Kia G4KP or Smartstream G 2.5 T-GDi engine has been assembled since 2020 and is installed on the Sorento and Santa Fe crossovers, as well as charged versions of the Sonata N-Line and K5 GT. This turbo engine is distinguished by the presence of a combined fuel injection system GDi + MPi.

Theta 2.5L family: G4KM, G4KN, G4KP, G4KR.

The engine was installed on:

  • Hyundai Santa Fe 4 (TM) since 2020;
  • Hyundai Sonata 8 (DN8) since 2020;
  • Kia K5 3 (DL3) since 2020;
  • Kia Sorento 4 (MQ4) since 2020.


Production years since 2020
Displacement, cc 2497
Fuel system GDi + MPi
Power output, hp 280 – 294
Torque output, Nm 422
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 88.5
Piston stroke, mm 101.5
Compression ratio 10 – 10.5
Features DOHC
Hydraulic lifters yes
Timing drive chain
Phase regulator Dual CVVT
Turbocharging yes
Recommended engine oil 0W-30
Engine oil capacity, liter 6.2
Fuel type petrol
Euro standards EURO 5/6
Fuel consumption, L/100 km (for Hyundai Sonata 2021)
— city
— highway
— combined
Engine lifespan, km ~200 000

Disadvantages of the Hyundai G4KP engine

  • This turbo engine has just appeared and it is too early to talk about its reliability;
  • The problem of coking inlet valves is solved by the presence of combined injection;
  • Powerful turbocharged powertrains pull timing chains very quickly;
  • This is a very hot engine and you need to monitor the condition of its cooling system;
  • And variable displacement oil pump units do not add reliability.

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