G4KJ 2.4L Engine Crankshaft - Con Rod & Piston Kit For Sonata Optima This engine component set is designed for use with the G4KJ 2.4L engine platform.It includes a crankshaft, connecting rods, pistons, piston pins, and piston rings, providing a complete assembly for engine rebuilds or replacements.Application: Compatible with 4-Door models equipped with the 2.4L engine from 2011 to 2020, including: - Sonata (2011–2016) - Optima (2011–2018) - Tucson (2014–2019) - Santa Fe Sport (2017–2018) OEM Part Numbers: Crankshaft: 23111-2G200, 23111-2G230, 23111 2G200, 23111 2G230, 231112G200, 231112G230, 72RZ6-2GF00, 72RZ6 2GF00, 72RZ62GF00 Connecting Rods: 23510-2G500, 23510-2G540, 23510-2G520, 23510-2GGA0, 23510-2G541, 23510-2G552, 23410-2G511, 23410-2G521, 23410-2G510 Piston & Rings Set: 23040-2G500, 23410-2G500, 23040 2G500, 23410 2G500, 230402G500, 234102G500 Specifications: Condition: Fitment Type: Direct Replacement Package Includes: 1 x Engine Crankshaft 4 x Connecting Rod 4 x Engine Piston 4 x Engine Piston Pin 1 x Set of Engine Piston Rings Constructed for and resistance to rust and corrosion, this kit supports stable engine performance and extended service life.engineered for proper fit and function, it is suitable for maintaining standard engine.Professional installation is recommended.No instructions are included.