This product is a genuine Porsche engine crankshaft main bearing half, with the part number 0PB105591G. It is a high-quality replacement part for Porsche engines, designed to fit perfectly and function effectively. This bearing half is an essential component in the engine's crankshaft, providing support and reducing friction for smooth operation. It is made with durable materials and meets strict quality standards to ensure optimal performance. This product is suitable for use in various Porsche models and is an authentic part from the manufacturer.