Genuine OEM Ford Crankshaft Bearing, part number 1371729. This bearing is a critical component that supports the crankshaft, allowing it to rotate smoothly while significantly reducing friction. It is designed to withstand high loads and temperatures within the engine. The diagram shows this part as a main bearing for the crankshaft. Genuine Ford bearings are manufactured with precise tolerances and high-quality materials to ensure optimal performance and a long service life for the engine.