Piston Kit for Hyundai / Kia G4HC Engine (Atos, Atos Prime, Santro Models; 12-Valve, 1.0L) 23410-02700
The Hyundai/Kia G4HC (1.0L) and G4HE (1.1L) series Epsilon engines typically utilize piston assemblies with a bore diameter ranging from 66.0 mm (G4HC) to 67.0 mm (G4HE). Key technical specifications include a piston pin diameter of 17 mm or 19 mm, designed to accommodate a standard compression ratio of approximately 9.7:1 to 10.1:1.
Description
Piston Assembly Specifications (G4HC/G4HE Epsilon Series):
Engine Models: G4HC (1.0L SOHC), G4HE (1.1L SOHC).
Bore: 66.00 mm (G4HC) / 67.00 mm (G4HE).
Piston Pin Diameter: 17.00 mm or 19.0 mm (varies by specific vehicle model version).
Piston Ring Thickness: Typically 1.2–1.5 mm for the top ring, 1.2–2.0 mm for the second ring, and 2.5 mm for the oil ring.
Compression Ratio: 9.7:1 (1.0L) – 10.1:1 (1.1L).
Material: ZL109












