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. 18-month warranty.
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
- 18-month warranty included
- Packed in a reinforced crate for safe international freight
- Fast global shipping to port or door
Frequently Asked Questions
What vehicles use the G4JS cylinder head?
The G4JS 2.4L engine was fitted to Hyundai Santa Fe (SM), Sonata (EF), Starex (A1), H200, Kia Magentis (GD), Sorento (BL) and Optima (MS) produced between 1998 and 2007.
Does this G4JS cylinder head come with valves and camshafts?
Yes. This assembly is supplied fully assembled with intake and exhaust valves, valve springs, camshafts and hydraulic lifters pre-installed.
What is the OEM part number for this cylinder head?
The primary OEM references are Hyundai 22100-38103, 22100-38104 and 22100-38105. Cross-reference numbers include 22100-38410.
Is a warranty included?
Yes, this G4JS cylinder head assembly includes an 18-month warranty.
More Cylinder Heads & Quick Contact
- Browse more cylinder heads: View our complete cylinder head catalog for Hyundai and Kia.
- Need help? Contact us directly on WhatsApp for fast compatibility checks and shipping quotes.










