The insert bushing, marked with code number H 27152, is a precision-machined component used in the Adriadiesel/Jugoturbina/Zgoda/Sulzer ASL25 diesel engine to ensure proper alignment and smooth movement between rotating or sliding parts. Typically used to reduce wear and friction within mechanical joints, the insert bushing acts as a sacrificial surface that protects more critical components from damage. Manufactured from durable, wear-resistant materials, this bushing enhances engine longevity, improves mechanical efficiency, and simplifies maintenance by allowing for easy replacement when worn.