Genuine OEM Jaguar Crankshaft Main Bearing, part number C2Z30449. This critical engine component provides essential support for the crankshaft, allowing it to rotate smoothly within the engine block while minimizing friction. It is a precision-engineered half-shell bearing designed to withstand extreme forces and temperatures. Weighing 0.033 kg, this bearing is manufactured to exact factory tolerances. Using a genuine OEM main bearing ensures the correct material composition, precise dimensions, and optimal clearance, which are vital for preventing premature wear, reducing vibration, and maintaining the long-term reliability of the engine.