This is a brand-new alternator suitable for MAN trucks, marked with part numbers 51261017283 and 51261017278. It is manufactured strictly in line with original factory specifications. Adopting high-strength raw materials, it runs stably with reliable power output. The part fits perfectly with the original installation position and can be replaced directly without extra modification. It is a cost-effective and trustworthy engine spare part for routine upkeep and emergency repair of MAN trucks.