The cylindrical pin K 34108 is a precision fastening and positioning component designed for the upper ball socket K 34104 in the Sulzer ZV40/48 engine. Its primary function is to securely retain and accurately position the ball socket within the operating piston assembly while allowing smooth mechanical movement where required. Manufactured from high-strength, precision-hardened materials, the pin is engineered to withstand shear forces, vibration, repeated cyclic loading, and long-term operational stresses without loss of dimensional accuracy. Precision manufacturing ensures exact fitment, reliable alignment, and consistent performance throughout extended service intervals. By maintaining the integrity of the articulated connection, the K 34108 cylindrical pin contributes to dependable operating piston performance, reduced mechanical wear, and long-term engine reliability.