Engine Connecting Rod Piston and Rings Kit designed for Sonata and Optima models equipped with 2.4L G4KJ engines.Constructed from steel, the kit includes components engineered for durability and consistent performance under normal operating conditions.The set is intended as a direct replacement, requiring no modifications during installation.It includes 4 engine pistons, 4 piston pins, 4 connecting rods, and 1 set of piston rings, providing all necessary parts for complete piston assembly replacement.Precisely manufactured to match specifications, this kit supports proper engine function and maintains compression efficiency.Suitable for use in vehicles where part numbers 23040-2G200, 23040-25200, 23510-2G500, 23510-2GGA0, 23040-2G500, 23410-2G500, 23040-2G510, 23040 2G510, 23410 2G501, 234102G501, 23510-2G540, and 23510-2G520 are specified.Designed for straightforward integration into the engine rebuild process, this piston and connecting rod assembly supports when installed correctly.