1. G4FA
- Displacement: 1.4L
- Type: Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai i20, Hyundai Accent, Kia Rio
2. G4FC
- Displacement: 1.6L
- Type: Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Elantra, Kia Cerato, Hyundai i30, Hyundai Accent, Kia Rio
3. G4FG
- Displacement: 1.6L
- Type: Inline 4-cylinder, DOHC, 16-valve, GDI (Gasoline Direct Injection)
- Vehicles: Hyundai Elantra, Kia K3, Kia Soul, Hyundai i30, Kia Forte
4. G4ED
- Displacement: 1.6L
- Type: Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Accent, Hyundai Getz, Kia Rio
5. G4EE
- Displacement: 1.4L
- Type: Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Accent, Kia Rio
6. G4GC
- Displacement: 2.0L
- Type: Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Elantra, Hyundai Tucson, Hyundai Santa Fe, Kia Optima, Kia Carens, Hyundai Coupe
7. G4KE
- Displacement: 2.4L
- Type: Theta II series, Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Sonata, Hyundai Santa Fe, Kia Optima, Kia Sorento, Kia Sportage
8. G4KD
- Displacement: 2.0L
- Type: Theta II series, Inline 4-cylinder, DOHC, 16-valve, CVVT
- Vehicles: Hyundai Tucson, Hyundai Elantra, Kia Sportage, Kia Optima
9. G4NA
- Displacement: 2.0L
- Type: Nu series, Inline 4-cylinder, DOHC, 16-valve, MPI (Multi-Point Fuel Injection)
- Vehicles: Hyundai Elantra, Kia K3, Kia Sportage, Hyundai Sonata
10. G4GB
- Displacement: 1.6L
- Type: Gamma series, Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Elantra, Hyundai Accent, Kia Rio, Kia Cerato
11. G6BA
- Displacement: 2.7L
- Type: V6 engine, DOHC, 24-valve
- Vehicles: Hyundai Santa Fe, Hyundai Tucson, Kia Magentis, Hyundai Coupe
12. G4KA
- Displacement: 1.8L
- Type: Beta II series, Inline 4-cylinder, DOHC, 16-valve
- Vehicles: Hyundai Elantra, Hyundai Tiburon
13. G4BA
- Displacement: 1.5L
- Type: Alpha series, Inline 4-cylinder, SOHC
- Vehicles: Hyundai Accent, Kia Sephia
14. G4FJ
- Displacement: 1.6L
- Type: Inline 4-cylinder, Turbocharged, GDI (Gasoline Direct Injection)
- Vehicles: Hyundai Veloster, Kia Ceed, Kia ProCeed, Kia Soul Turbo