Engine Cylinder Head Assey Old Model For Hyundai Sonata Fe Kia Optima G4KJ 2.4L
The G4KJ 2.4L GDI engine cylinder head assembly is made of aluminum alloy and features a double overhead camshaft (DOHC) 16-valve structure. Designed specifically for 2011-2020 Hyundai/Kia models, it integrates the camshafts, valves, valve springs, and tappets. This cylinder head assembly comes in two versions: an “older model” (with a hydraulic variable valve timing system) and a “newer model” (with an electronic variable valve timing system), typically corresponding to part numbers 22100-2GGB5 and 22100-2G510.
Description
Engine Model: Hyundai/Kia 2.4L GDI (G4KJ, sometimes compatible with G4KH).
Material: Aluminum alloy.
Valve Structure: DOHC, 16 valves (4 valves per cylinder).
Components Included: Assembled cylinder head, intake/exhaust camshafts, valves, valve springs, seals, and in some kits, a high-pressure fuel pump mounting bracket.
Applicable Models: Direct replacement for various 2011-2020 Hyundai (Sonata, Santa Fe Sport, Tucson) and Kia (Optima, Sorento, Sportage) models.
Important Note: The G4KJ engine’s Variable Valve Timing (VVT) control system may differ depending on the year of manufacture (older vs. newer models).
















