Applicable Engine:
G4EH / G4EK
Applicable Brand:
HYUNDAI / KIA
Applicable Car:
Accent / Atos / Sephia / Pride
Product parameters:
| Displacement | Fuel | Cylinder | Vale | Camshaft | Year |
| 1.3 |
Gasoline
|
4 | 12 | 1 | 1994 - 2003 |
Cylinder Head
Cylinder Head for Hyundai Kia G4EH & G4EK 1.3L SOHC Engines
Introduction
Product NO.
| ML NO. | OEM NO. | REF NO. |
| MLG088A | 22100-22620 22100-22600 22100-22021 22100-22021 | |
| MLG088B | ||
| MLG088C |
Product Information Cylinder Head
Gasoline | Inline-4 | 12-Valve | SOHC
1. Product Overview
The G4EH and G4EK engines are part of Hyundai’s early Alpha engine family, featuring 1.3L inline-4 SOHCgasoline configurations. These engines were widely used in compact Hyundai and Kia models during the 1990s and early 2000s. The cylinder heads are 12-valve, single overhead camshaft (SOHC) designs built for reliability and fuel efficiency.
2. Technical Specifications
| Specification | Details |
|---|---|
| Engine Codes | G4EH, G4EK |
| Displacement | 1.3L (1341 cc) |
| Valvetrain | SOHC, 12 valves (3 per cylinder) |
| Cylinder Head Material | Cast Aluminum Alloy |
| Engine Block Material | Cast Iron |
| Fuel Type | Gasoline |
| Cooling System | Water-cooled |
| Timing Type | Belt-driven |
| Compression Ratio | ~9.3:1 |
3. Compatible Vehicle Applications
| Make | Models | Year Range |
|---|---|---|
| Hyundai | Accent X3 (LC), Excel | 1994–2000 |
| Hyundai | Atos (Select markets) | 1997–2003 |
| Kia | Sephia (early 1.3L) | 1995–1999 |
| Kia | Pride (some variants) | 1995–2000 |
Note: G4EK was more common in early Hyundai Excel and Accent models, while G4EH was an updated version with slight emissions tuning.
4. OEM Part Numbers (Examples)
- 22100-22010
- 22100-22020
- 22100-22030
- 22100-22050
OEM numbers may vary slightly based on market and emissions region.
5. Product Features
- Made from high-quality cast aluminum alloy
- Available as bare head, semi-complete, or fully assembled with camshaft and valves
- Fully pressure-tested for cracks and leaks
- Precision machined for OE fitment and performance
6. Common Cylinder Head Issues
| Common Problem | Cause | Recommended Fix |
|---|---|---|
| Warping or cracking | Overheating | Resurfacing or head replacement |
| Valve seat wear | High mileage | Valve seat recut or replacement |
| Oil leaks from cam seals | Aging gaskets | Replace seals and cam cover gasket |
| Valve noise | Hydraulic lifter or wear issues | Inspect cam and rocker arms |
7. Installation Tips
- Always replace with a new head gasket and torque-to-yield bolts
- Check and adjust valve clearance (if mechanical tappets used)
- Confirm timing alignment during reassembly
- Flush cooling system to prevent future overheating