Genuine OEM Hyundai Flywheel Ring Gear, part number 232122A701. This critical engine component is mounted on the flywheel and is designed to engage with the starter motor's pinion gear. Its primary function is to transmit the rotational force from the starter to the engine's crankshaft, initiating the engine's combustion cycle. Choosing a genuine OEM flywheel ring gear ensures precise tooth geometry, material strength, and durability, which are essential for reliable engine starting and long-term performance without premature wear or failure.