C4.4 Crankshaft 475-8373 C4.4 3054C diesel Engine Parts Crankshaft 4758373 359-0715 359-0716 364-2829 330-1736 The contents of a crankshaft overhaul kit can vary by engine model, but generally include: Main and Connecting Rod Bearings: Essential for providing a low-friction, wear-resistant surface between the crankshaft journals and the engine block/connecting rods.Seals and Gaskets: Critical for preventing oil leaks at the front and rear of the crankshaft, ensuring proper