Genuine OEM Hyundai Rear Crankshaft Oil Seal, part number 2144325000. This critical seal is designed to prevent engine oil from leaking out around the rear of the crankshaft, maintaining proper lubrication and preventing contamination. It is installed at the rear of the engine, sealing the crankshaft. Made from high-quality, oil-resistant rubber, it weighs approximately 0.34 kg. Using a genuine OEM seal ensures precise dimensions, material integrity, and optimal sealing performance, which is vital for long-term engine health and preventing costly oil leaks.