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G4JS cylinder head assembly front view – Hyundai Kia 2.4L Sirius II
G4JS cylinder head intake side with valves and camshafts installed
G4JS cylinder head exhaust side – Hyundai Kia 2.4L MPI
G4JS cylinder head combustion chamber detail – 2.4L Sirius II
G4JS engine code stamp close-up – OEM 22100-38105
G4JS cylinder head camshafts and valve springs pre-installed
G4JS cylinder head packed in wooden crate for international shipping

Hyundai G4JS Complete Cylinder Head 22100-38103

Brand new G4JS cylinder head assembly with valves and camshafts pre-installed.

Precision-manufactured to OEM specifications for Hyundai and Kia vehicles powered by the 2.4L Sirius II MPI petrol engine. Ready to bolt onto your engine block after transferring your external parts. Ideal for head replacement, engine repair or rebuild.  

  • Engine Code: G4JS (2.4L Sirius II MPI)
  • Displacement: 2.4 Litre (2351 cc)
  • Configuration: Inline 4-cylinder, DOHC 16-valve
  • Fuel Type: Petrol / Gasoline
  • Condition: New – Cylinder Head Assembly (Valves & Camshafts Pre-Installed)
  • OEM: Hyundai 22100-38103 / 22100-38104 / 22100-38105
  • Warranty: 12 months
  • Compatible models: Hyundai Santa Fe (SM), Sonata (EF), Starex (A1), Kia Magentis (GD), Sorento (BL), Optima (MS) (confirm via OEM number)
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Description

G4JS Cylinder Head Assembly – Hyundai / Kia 2.4L Sirius II

G4JS cylinder head assembly for Hyundai and Kia 2.4L Sirius II MPI petrol engines. Brand new, with valves and camshafts pre-installed. Direct fit for Santa Fe, Sonata, Starex, Magentis, Sorento and Optima. OEM 22100-38105. 

What’s Included

  • Complete cylinder head casting – precision-machined and pressure-tested
  • 16 valves – intake and exhaust, heat-resistant (4 per cylinder)
  • Valve springs, spring seats and retainers
  • Valve stem seals and valve guides (pre-installed)
  • Camshafts – intake and exhaust (DOHC)
  • Hydraulic lifters (pre-installed)
  • Camshaft bearing caps and bolts (torqued to specification)
  • Core plugs and oil gallery plugs (installed)

Note: Valve cover, timing belt, fuel injectors, ignition coils, intake manifold and exhaust manifold are NOT included. Transfer these from your original engine.

Vehicle Compatibility

Fits the following Hyundai and Kia models equipped with the G4JS engine:

  • Hyundai Santa Fe 1 (SM) – 2.4 16V (2000 – 2006)
  • Hyundai Sonata 4 (EF) – 2.4 16V (1998 – 2005)
  • Hyundai Starex 1 (A1) – 2.4 16V (2001 – 2007)
  • Hyundai H200 – 2.4 16V (select markets)
  • Kia Magentis 1 (GD) – 2.4 16V (2000 – 2006)
  • Kia Sorento 1 (BL) – 2.4 16V (2002 – 2006)
  • Kia Optima 1 (MS) – 2.4 16V (2000 – 2006)
  • JAC Refine – 2.4 16V (licensed production)

Always verify your engine code and OEM part number before ordering.

OEM Part Number Cross-Reference

  • Hyundai: 22100-38103, 22100-38104, 22100-38105
  • Related references: 22100-38410, 2210038103, 2210038104, 2210038105

Why Buy This G4JS Cylinder Head Assembly

  • 100% brand new – not reconditioned or repaired
  • Pressure-tested for leaks and cracks
  • Pre-installed valves and camshafts save hours of fitting time
  • 12-month warranty included
  • Packed in a reinforced crate for safe international freight
  • Fast global shipping to port or door

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