Cylinder Head Bolt Set for 2012-2020 Hyundai Kia 2.0L 22320-2E000 22321-2E000
The cylinder head bolts of the Hyundai/Kia G4NB 2.0L engine (2009-2024 models) typically require a 10mm socket wrench. These bolts are usually torque yield (TTY) bolts and must be replaced after removal to maintain proper clamping force and prevent leaks. Tightening usually follows a precise multi-step sequence, typically involving applying a base torque followed by rotation at a specific angle.
Description
Part Number: 22321-2E000
Replacement/Interchangeable Part Numbers: 22320-2E000, 22322-2E000
Engine Type: 1.8L L4 G4NB (Nu Series Engine)
Common Models: Hyundai Elantra (MD), i30 (GD), Mistra, Kia Forte (YD), Kia K4
Key parameters for modern G4NB/G4NA engines:
Sleeve size: 10mm
Bolt type: Torque yield type (TTY) – Must be replaced.
Tightening procedure: Multi-stage tightening (e.g., initial torque + 90° to 120° turns). • Sequence: Follow a crisscrossing tightening pattern from the center outwards to ensure even pressure.










