The cylindrical pin, designated with code number K 27256, is a small yet essential component designed to work in conjunction with valve housing K 27255 in the Adriadiesel/Jugoturbina/Zgoda/Sulzer ZV40/48 diesel engine. This pin ensures precise positioning and secure attachment of the valve housing, playing a pivotal role in the structural integrity and alignment of the fuel pressure valve system. Manufactured for high tolerance and durability, it withstands both mechanical stress and vibration during engine operation. Though small in size, the cylindrical pin is fundamental to the proper functioning of the fuel pressure regulation mechanism, and its reliability directly impacts overall engine stability.