Hyundai G4KG 21100-2BB20 Complete Cylinder Head Assy G4KG 2.4 H1 H100 H200 Accent E-County Kia Carens – OEM 211002BB20

Product Overview: This cylinder head assembly is manufactured for Hyundai Kia G4KG engines and supplied ready for installation as a direct replacement unit. It is supplied fully assembled with valves, guides and seats installed, so a cracked, warped or valve-damaged original head can be replaced without additional machining work.

Key Features: The head is machined on CNC centres for correct deck flatness, precise valve seat angles and matched combustion chamber volumes. 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.

Vehicle Compatibility: This part is listed for Hyundai Kia, covering model families such as Hyundai Sonata / Santa Fe / Kia Optima /. 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. If a vehicle is not shown in the compatibility list, cross-reference the engine code and original reference number to confirm fitment.

Specifications: Key specifications: engine code G4KG; displacement 2.4 L; cylinder configuration Inline-4; material Aluminum Alloy; size Standard Size; condition New; warranty 12 Months. Measured characteristics include valve train DOHC 16 Valve With Dual CVVT. The component is a new part rather than a reconditioned exchange unit.

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: Typical applications include head gasket failure repairs, valve damage repairs, engine rebuilds and fleet maintenance on vehicles with cracked or distorted cylinder heads. It is a sensible stock item for workshops that regularly repair this engine family and want to reduce vehicle downtime.

Benefits / Replacement Information: A replacement head recovers lost compression, stops coolant loss caused by cracks, and restores even combustion across all cylinders. The pre-assembled, pre-machined format avoids the labour and uncertainty of welding, skimming and re-seating an original head. It offers dealer-equivalent dimensions and sealing surfaces at a more economical price.

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. Where stretch bolts are specified, always fit new head bolts and the correct gasket, and make sure bolt holes are clean and dry. A qualified technician should carry out fitment using the manufacturer's documented procedures and torque values.