The Astra 00123157 collar is a genuine OEM component designed for secure fastening in various Astra heavy-duty trucks and construction vehicles. This robust collar, also cross-referenced as IVECO 504385079, ensures reliable performance and precise fitment, crucial for maintaining the integrity of machinery systems. Manufactured to original specifications, it provides durability and compatibility with models such as Astra HD9, HHD9, ADT, RD, and ACTL series.