The Iveco 500086494 is a genuine OEM main bearing set designed for specific Iveco Cursor 8, Cursor 10, and Cursor 13 engines. This set features an undersize of -0.50mm, making it suitable for crankshafts that have been machined to this specification. It ensures precise fitment and optimal engine performance, critical for the longevity and reliability of heavy-duty applications. This main bearing set is a direct replacement part, ensuring compatibility and maintaining original equipment standards.