Hyundai G4KG G4KG 2.4 Auto Engine Cylinder Head I10 I30 AVante Veloster K5 K2 Sonata Kia Sorento – OEM 211002BB20

Product Overview: Engineered for Hyundai Kia G4KG engines, this cylinder head assembly is a complete replacement unit built to original equipment tolerances. Because the unit is delivered fully assembled, a failed original head caused by cracking, distortion or valve damage can be replaced directly with minimal downtime.

Key Features: The casting is CNC-machined to original equipment tolerances to deliver correct deck flatness, valve seat concentricity and accurate port geometry. Guides and seats are fitted and honed so sealing is even and compression is balanced across all cylinders, giving a stable idle. Thickened material around the valve bridge and combustion chamber improves resistance to thermal cracking and distortion. Consistent production tolerances mean the part can be fitted without the trial-and-error often associated with low-grade replacements.

Vehicle Compatibility: This part is listed for Hyundai Kia, covering model families such as Hyundai Sonata / Santa Fe / Kia Sorento /. Because several production revisions share the same basic casting or forging, always confirm the engine code, casting marks and original reference number against the failed component before ordering.

Specifications: Key specifications: engine code G4KG; cylinder configuration Inline 4; material Aluminum Alloy Casting; size Standard Size; condition New; warranty 12 Months. Additional dimensional and build data includes valve train DOHC 16-Valve CVVT and compression ratio 10.5:1. It is supplied in standard size, so no undersize bearings or additional machining are required at assembly.

OEM / Reference Numbers: This part is cross-referenced to 211002BB20, 211002BB21 and 2210022021. Compare these references with the identification marks on the original component to confirm compatibility.

Applications: It is intended for repairing cylinder heads damaged by overheating, cracking or valve contact, and for complete engine overhauls. The part is a sensible stock item for workshops that service this engine family regularly and want to minimise vehicle downtime.

Benefits / Replacement Information: Installing a new head assembly restores lost compression, corrects coolant loss and combustion leakage caused by cracking or distortion, and returns the engine to reliable service. Delivered ready to fit, the assembly removes the extensive machining work normally needed to revive a failed head. A new casting removes the risk that a repaired original head will crack again after the engine has been rebuilt.

Installation or Fitment Notes: Prior to assembly, verify the part number and engine code, and check the block deck and head bolt threads for condition. Use new head bolts where they are torque-to-yield, a correct replacement gasket, and clean, dry head bolt holes before assembly. Check piston protrusion and valve-to-piston clearance where applicable, and set cam timing strictly to the manufacturer's marks.