4 Sets 235102G500 23510-2GGA0 23510-2G540 23510-2G520 Connecting Rods Pistons for 11-13 Sonata Optima 2.4L This engine piston and connecting rod kit is designed for 2011–2013 Sonata and Optima models equipped with a 2.4L engine.Constructed from forged steel, the components are built to withstand demanding operating conditions and support long-term engine performance.The set includes 4 engine pistons, 4 piston pins, 1 set of piston rings, and 4 connecting rods, providing all necessary parts for a complete engine rebuild. The components are engineered for precise fitment, compatibility with specified vehicle models.Installation can be completed with standard mechanical tools and knowledge, aided by clear assembly guidance.The design focuses on structural integrity and , supporting efficient engine function under normal driving conditions. This product is a third-party alternative.Brand/model references are included only to assist with compatibility identification.