Genuine OEM Hyundai Engine Mount Nut, part number 21825F2000. This critical fastener is designed to secure the engine mount to its corresponding bracket, ensuring the engine is firmly and safely attached to the vehicle's chassis. It plays a vital role in maintaining the structural integrity of the engine mounting system, which in turn helps to absorb engine vibrations and noise. Choosing a genuine OEM nut guarantees the correct thread pitch, material strength, and torque specifications for secure and reliable engine support.