1. COMPATIBLE VEHICLESRocker Arm fits for 2014 2023 Forte 2.0L for 2014 2016 Forte 1.8L 1797CC for 2021 2023 Seltos 2.0L for 2012 2023 Soul 2.0L for 2018 2021 Kona 2.0L for 2014 2021 Tucson 2.0L for 2019 2021 Veloster 2.0L for 2017 2020 Optima 2.0L for 2016 2019 Sonata 2.0L for 2014 2016 Forte Koup 2.0L 2. REPLACE PART NUMBER24551 2E001 245512E001; 24551 2E001 245512E001 Engine Rocker Arms has been heat treated for durability and features a waterproof finish, ensuring excellent resistance to high temperatures. Every detail is considered to meet the high standards required for your vehicle's engine 3. EFFICIENT POWER TRANSMISSIONEngine rocker arms adopt advanced materials and surface treatment processes to reduce friction with the camshaft and valves. Reducing friction can minimize energy losses, improve the engine's mechanical efficiency, making the engine more fuel efficient during operation. At the same time, it can also reduce component wear and extend the engine's life 4. EASY INSTALLATION 24551 2E001 245512E001 Engine Rocker Arms is designed for ease of installation. This Rocker Arm simplifies the replacement process. Whether you're a DIY enthusiast or relying on professional installation, the straightforward design facilitates a smooth upgrade. And the premium materials also ensures longevity and durability of rocker arms, giving you peace of mind on the road 5. WHEN DOES YOUR ENGINE ROCKER ARMS NEED TO BE REPLACED1.Mechanical damage: Rocker arm breakage Severe cracks 2. Excessive wear: Severe wear on the rocker arm head Severe wear on the rocker arm shaft hole 3. Jamming or abnormal noise: Rocker arm jamming Persistent abnormal noise 4. Severe decline in engine performance